diff --git a/lib/modules/platform/azure/__snapshots__/index.spec.ts.snap b/lib/modules/platform/azure/__snapshots__/index.spec.ts.snap
index 3be9ce9411245c3..f6351cf80ddb1b6 100644
--- a/lib/modules/platform/azure/__snapshots__/index.spec.ts.snap
+++ b/lib/modules/platform/azure/__snapshots__/index.spec.ts.snap
@@ -280,6 +280,7 @@ exports[`modules/platform/azure/index updatePr(prNo, title, body, platformOption
     {
       "description": "Hello world again",
       "status": 2,
+      "targetRefName": "refs/heads/target_branch",
       "title": "The New Title",
     },
     "1",
@@ -295,6 +296,7 @@ exports[`modules/platform/azure/index updatePr(prNo, title, body, platformOption
   [
     {
       "status": 1,
+      "targetRefName": "refs/heads/target_branch",
     },
     "1",
     1234,
@@ -302,6 +304,7 @@ exports[`modules/platform/azure/index updatePr(prNo, title, body, platformOption
   [
     {
       "description": "Hello world again",
+      "targetRefName": "refs/heads/target_branch",
       "title": "The New Title",
     },
     "1",
@@ -315,6 +318,7 @@ exports[`modules/platform/azure/index updatePr(prNo, title, body, platformOption
   [
     {
       "description": "Hello world again",
+      "targetRefName": "refs/heads/target_branch",
       "title": "The New Title",
     },
     "1",
@@ -327,6 +331,7 @@ exports[`modules/platform/azure/index updatePr(prNo, title, body, platformOption
 [
   [
     {
+      "targetRefName": "refs/heads/target_branch",
       "title": "The New Title - autoclose",
     },
     "1",
diff --git a/lib/modules/platform/azure/index.spec.ts b/lib/modules/platform/azure/index.spec.ts
index 29493cd24212171..308da75ced5e326 100644
--- a/lib/modules/platform/azure/index.spec.ts
+++ b/lib/modules/platform/azure/index.spec.ts
@@ -826,6 +826,7 @@ describe('modules/platform/azure/index', () => {
         number: 1234,
         prTitle: 'The New Title',
         prBody: 'Hello world again',
+        targetBranch: 'target_branch',
       });
       expect(updatePullRequest.mock.calls).toMatchSnapshot();
     });
@@ -842,6 +843,7 @@ describe('modules/platform/azure/index', () => {
       await azure.updatePr({
         number: 1234,
         prTitle: 'The New Title - autoclose',
+        targetBranch: 'target_branch',
       });
       expect(updatePullRequest.mock.calls).toMatchSnapshot();
     });
@@ -860,6 +862,7 @@ describe('modules/platform/azure/index', () => {
         prTitle: 'The New Title',
         prBody: 'Hello world again',
         state: 'closed',
+        targetBranch: 'target_branch',
       });
       expect(updatePullRequest.mock.calls).toMatchSnapshot();
     });
@@ -878,6 +881,7 @@ describe('modules/platform/azure/index', () => {
         prTitle: 'The New Title',
         prBody: 'Hello world again',
         state: 'open',
+        targetBranch: 'target_branch',
       });
       expect(updatePullRequest.mock.calls).toMatchSnapshot();
     });
diff --git a/lib/modules/platform/azure/index.ts b/lib/modules/platform/azure/index.ts
index def6948ea10b12c..b07179a9ac86e52 100644
--- a/lib/modules/platform/azure/index.ts
+++ b/lib/modules/platform/azure/index.ts
@@ -508,13 +508,16 @@ export async function updatePr({
   prTitle: title,
   prBody: body,
   state,
+  targetBranch,
   platformOptions,
 }: UpdatePrConfig): Promise<void> {
   logger.debug(`updatePr(${prNo}, ${title}, body)`);
 
   const azureApiGit = await azureApi.gitApi();
+  const targetRefName = getNewBranchName(targetBranch);
   const objToUpdate: GitPullRequest = {
     title,
+    targetRefName,
   };
 
   if (body) {
@@ -523,7 +526,7 @@ export async function updatePr({
 
   if (state === 'open') {
     await azureApiGit.updatePullRequest(
-      { status: PullRequestStatus.Active },
+      { status: PullRequestStatus.Active, targetRefName },
       config.repoId,
       prNo
     );
diff --git a/lib/modules/platform/bitbucket-server/index.spec.ts b/lib/modules/platform/bitbucket-server/index.spec.ts
index 763d837ecf1220b..0b427a1dc66d385 100644
--- a/lib/modules/platform/bitbucket-server/index.spec.ts
+++ b/lib/modules/platform/bitbucket-server/index.spec.ts
@@ -1417,6 +1417,7 @@ describe('modules/platform/bitbucket-server/index', () => {
               number: 5,
               prTitle: 'title',
               prBody: 'body',
+              targetBranch: 'target_branch',
             })
           ).toResolve();
         });
@@ -1443,6 +1444,7 @@ describe('modules/platform/bitbucket-server/index', () => {
               prTitle: 'title',
               prBody: 'body',
               state: 'closed',
+              targetBranch: 'target_branch',
             })
           ).toResolve();
         });
@@ -1469,6 +1471,7 @@ describe('modules/platform/bitbucket-server/index', () => {
               prTitle: 'title',
               prBody: 'body',
               state: 'open',
+              targetBranch: 'target_branch',
             })
           ).toResolve();
         });
@@ -1480,6 +1483,7 @@ describe('modules/platform/bitbucket-server/index', () => {
               number: null as any,
               prTitle: 'title',
               prBody: 'body',
+              targetBranch: 'target_branch',
             })
           ).rejects.toThrow(REPOSITORY_NOT_FOUND);
         });
@@ -1492,7 +1496,12 @@ describe('modules/platform/bitbucket-server/index', () => {
             )
             .reply(404);
           await expect(
-            bitbucket.updatePr({ number: 4, prTitle: 'title', prBody: 'body' })
+            bitbucket.updatePr({
+              number: 4,
+              prTitle: 'title',
+              prBody: 'body',
+              targetBranch: 'target_branch',
+            })
           ).rejects.toThrow(REPOSITORY_NOT_FOUND);
         });
 
@@ -1509,7 +1518,12 @@ describe('modules/platform/bitbucket-server/index', () => {
             .reply(404);
 
           await expect(
-            bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+            bitbucket.updatePr({
+              number: 5,
+              prTitle: 'title',
+              prBody: 'body',
+              targetBranch: 'target_branch',
+            })
           ).rejects.toThrow(REPOSITORY_NOT_FOUND);
         });
 
@@ -1558,6 +1572,7 @@ describe('modules/platform/bitbucket-server/index', () => {
               prTitle: 'title',
               prBody: 'body',
               state: 'open',
+              targetBranch: 'target_branch',
             })
           ).toResolve();
         });
@@ -1575,7 +1590,12 @@ describe('modules/platform/bitbucket-server/index', () => {
             .reply(409);
 
           await expect(
-            bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+            bitbucket.updatePr({
+              number: 5,
+              prTitle: 'title',
+              prBody: 'body',
+              targetBranch: 'target_branch',
+            })
           ).rejects.toThrow(REPOSITORY_CHANGED);
         });
 
@@ -1592,7 +1612,12 @@ describe('modules/platform/bitbucket-server/index', () => {
             .reply(405);
 
           await expect(
-            bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+            bitbucket.updatePr({
+              number: 5,
+              prTitle: 'title',
+              prBody: 'body',
+              targetBranch: 'target_branch',
+            })
           ).rejects.toThrowErrorMatchingSnapshot();
         });
       });
diff --git a/lib/modules/platform/bitbucket-server/index.ts b/lib/modules/platform/bitbucket-server/index.ts
index 43c44bf84c21eaa..10db54d3781036a 100644
--- a/lib/modules/platform/bitbucket-server/index.ts
+++ b/lib/modules/platform/bitbucket-server/index.ts
@@ -851,6 +851,7 @@ export async function updatePr({
   prBody: rawDescription,
   state,
   bitbucketInvalidReviewers,
+  targetBranch,
 }: UpdatePrConfig & {
   bitbucketInvalidReviewers: string[] | undefined;
 }): Promise<void> {
@@ -878,6 +879,9 @@ export async function updatePr({
               (name: string) => !bitbucketInvalidReviewers?.includes(name)
             )
             .map((name: string) => ({ user: { name } })),
+          toRef: {
+            id: `refs/heads/${targetBranch}`,
+          },
         },
       }
     );
@@ -919,6 +923,7 @@ export async function updatePr({
           prBody: rawDescription,
           state,
           bitbucketInvalidReviewers: invalidReviewers,
+          targetBranch,
         });
       } else {
         throw new Error(REPOSITORY_CHANGED);
diff --git a/lib/modules/platform/bitbucket/index.spec.ts b/lib/modules/platform/bitbucket/index.spec.ts
index 4e1cd431905e7f7..6d9988b15be5aa6 100644
--- a/lib/modules/platform/bitbucket/index.spec.ts
+++ b/lib/modules/platform/bitbucket/index.spec.ts
@@ -1175,7 +1175,12 @@ describe('modules/platform/bitbucket/index', () => {
         .put('/2.0/repositories/some/repo/pullrequests/5')
         .reply(200);
       await expect(
-        bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+        bitbucket.updatePr({
+          number: 5,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).toResolve();
     });
 
@@ -1238,7 +1243,12 @@ describe('modules/platform/bitbucket/index', () => {
         .put('/2.0/repositories/some/repo/pullrequests/5')
         .reply(200);
       await expect(
-        bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+        bitbucket.updatePr({
+          number: 5,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).toResolve();
     });
 
@@ -1282,7 +1292,12 @@ describe('modules/platform/bitbucket/index', () => {
         .reply(200);
 
       await expect(
-        bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+        bitbucket.updatePr({
+          number: 5,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).toResolve();
     });
 
@@ -1314,7 +1329,12 @@ describe('modules/platform/bitbucket/index', () => {
         )
         .reply(401);
       await expect(() =>
-        bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+        bitbucket.updatePr({
+          number: 5,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).rejects.toThrow(new Error('Response code 401 (Unauthorized)'));
     });
 
@@ -1339,7 +1359,12 @@ describe('modules/platform/bitbucket/index', () => {
           },
         });
       await expect(() =>
-        bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+        bitbucket.updatePr({
+          number: 5,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).rejects.toThrowErrorMatchingSnapshot();
     });
 
@@ -1364,7 +1389,12 @@ describe('modules/platform/bitbucket/index', () => {
           },
         });
       await expect(() =>
-        bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+        bitbucket.updatePr({
+          number: 5,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).rejects.toThrow(new Error('Response code 400 (Bad Request)'));
     });
 
@@ -1374,7 +1404,12 @@ describe('modules/platform/bitbucket/index', () => {
         .get('/2.0/repositories/some/repo/pullrequests/5')
         .reply(500, undefined);
       await expect(() =>
-        bitbucket.updatePr({ number: 5, prTitle: 'title', prBody: 'body' })
+        bitbucket.updatePr({
+          number: 5,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).rejects.toThrowErrorMatchingSnapshot();
     });
 
@@ -1393,6 +1428,7 @@ describe('modules/platform/bitbucket/index', () => {
           number: pr.id,
           prTitle: pr.title,
           state: 'closed',
+          targetBranch: 'target_branch',
         })
       ).toBeUndefined();
     });
diff --git a/lib/modules/platform/bitbucket/index.ts b/lib/modules/platform/bitbucket/index.ts
index de980f3b5201e49..6b74ea8042703e5 100644
--- a/lib/modules/platform/bitbucket/index.ts
+++ b/lib/modules/platform/bitbucket/index.ts
@@ -879,6 +879,7 @@ export async function updatePr({
   prTitle: title,
   prBody: description,
   state,
+  targetBranch,
 }: UpdatePrConfig): Promise<void> {
   logger.debug(`updatePr(${prNo}, ${title}, body)`);
   // Updating a PR in Bitbucket will clear the reviewers if reviewers is not present
@@ -896,6 +897,11 @@ export async function updatePr({
           title,
           description: sanitize(description),
           reviewers: pr.reviewers,
+          destination: {
+            branch: {
+              name: targetBranch,
+            },
+          },
         },
       }
     );
@@ -913,6 +919,11 @@ export async function updatePr({
             title,
             description: sanitize(description),
             reviewers: sanitizedReviewers,
+            destination: {
+              branch: {
+                name: targetBranch,
+              },
+            },
           },
         }
       );
diff --git a/lib/modules/platform/codecommit/index.spec.ts b/lib/modules/platform/codecommit/index.spec.ts
index 6dfc43483ab9df3..4f066ff7e2f4645 100644
--- a/lib/modules/platform/codecommit/index.spec.ts
+++ b/lib/modules/platform/codecommit/index.spec.ts
@@ -698,6 +698,7 @@ describe('modules/platform/codecommit/index', () => {
           prTitle: 'title',
           prBody: 'body',
           state: 'open',
+          targetBranch: 'target_branch',
         })
       ).toResolve();
     });
@@ -725,6 +726,7 @@ describe('modules/platform/codecommit/index', () => {
           prTitle: 'title',
           prBody: 'new description',
           state: 'open',
+          targetBranch: 'target_branch',
         })
       ).toResolve();
     });
@@ -751,6 +753,7 @@ describe('modules/platform/codecommit/index', () => {
           prTitle: 'title',
           prBody: 'new description',
           state: 'open',
+          targetBranch: 'target_branch',
         })
       ).toResolve();
     });
@@ -767,6 +770,7 @@ describe('modules/platform/codecommit/index', () => {
           prTitle: 'title',
           prBody: 'body',
           state: 'open',
+          targetBranch: 'target_branch',
         })
       ).toResolve();
     });
@@ -781,6 +785,7 @@ describe('modules/platform/codecommit/index', () => {
           prTitle: 'title',
           prBody: 'body',
           state: 'closed',
+          targetBranch: 'target_branch',
         })
       ).toResolve();
     });
diff --git a/lib/modules/platform/codecommit/index.ts b/lib/modules/platform/codecommit/index.ts
index 6ce173083c49017..313d06976d5c696 100644
--- a/lib/modules/platform/codecommit/index.ts
+++ b/lib/modules/platform/codecommit/index.ts
@@ -400,6 +400,7 @@ export async function updatePr({
   prTitle: title,
   prBody: body,
   state,
+  targetBranch,
 }: UpdatePrConfig): Promise<void> {
   logger.debug(`updatePr(${prNo}, ${title}, body)`);
 
diff --git a/lib/modules/platform/gitea/index.spec.ts b/lib/modules/platform/gitea/index.spec.ts
index 4b61916037cf344..bc5475ef2944c55 100644
--- a/lib/modules/platform/gitea/index.spec.ts
+++ b/lib/modules/platform/gitea/index.spec.ts
@@ -1107,7 +1107,7 @@ describe('modules/platform/gitea/index', () => {
       expect(helper.updatePR).toHaveBeenCalledWith(
         mockRepo.full_name,
         mockNewPR.number,
-        { title: 'new-title', body: 'new-body' }
+        { title: 'new-title', body: 'new-body', base: 'master' }
       );
     });
 
@@ -1222,11 +1222,16 @@ describe('modules/platform/gitea/index', () => {
     it('should update pull request with title', async () => {
       helper.searchPRs.mockResolvedValueOnce(mockPRs);
       await initFakeRepo();
-      await gitea.updatePr({ number: 1, prTitle: 'New Title' });
+      await gitea.updatePr({
+        number: 1,
+        prTitle: 'New Title',
+        targetBranch: 'target_branch',
+      });
 
       expect(helper.updatePR).toHaveBeenCalledTimes(1);
       expect(helper.updatePR).toHaveBeenCalledWith(mockRepo.full_name, 1, {
         title: 'New Title',
+        base: 'target_branch',
       });
     });
 
@@ -1237,12 +1242,14 @@ describe('modules/platform/gitea/index', () => {
         number: 1,
         prTitle: 'New Title',
         prBody: 'New Body',
+        targetBranch: 'target_branch',
       });
 
       expect(helper.updatePR).toHaveBeenCalledTimes(1);
       expect(helper.updatePR).toHaveBeenCalledWith(mockRepo.full_name, 1, {
         title: 'New Title',
         body: 'New Body',
+        base: 'target_branch',
       });
     });
 
@@ -1253,12 +1260,14 @@ describe('modules/platform/gitea/index', () => {
         number: 3,
         prTitle: 'New Title',
         prBody: 'New Body',
+        targetBranch: 'target_branch',
       });
 
       expect(helper.updatePR).toHaveBeenCalledTimes(1);
       expect(helper.updatePR).toHaveBeenCalledWith(mockRepo.full_name, 3, {
         title: 'WIP: New Title',
         body: 'New Body',
+        base: 'target_branch',
       });
     });
 
@@ -1270,12 +1279,14 @@ describe('modules/platform/gitea/index', () => {
         prTitle: 'New Title',
         prBody: 'New Body',
         state: 'closed',
+        targetBranch: 'target_branch',
       });
 
       expect(helper.updatePR).toHaveBeenCalledWith(mockRepo.full_name, 1, {
         title: 'New Title',
         body: 'New Body',
         state: 'closed',
+        base: 'target_branch',
       });
     });
   });
diff --git a/lib/modules/platform/gitea/index.ts b/lib/modules/platform/gitea/index.ts
index ecc8e64bfa5c3cb..802c2c5fc02da59 100644
--- a/lib/modules/platform/gitea/index.ts
+++ b/lib/modules/platform/gitea/index.ts
@@ -600,6 +600,7 @@ const platform: Platform = {
               number: pr.number,
               prTitle: title,
               prBody: body,
+              targetBranch,
             });
             pr.title = title;
             pr.bodyStruct = getPrBodyStruct(body);
@@ -622,6 +623,7 @@ const platform: Platform = {
     prTitle,
     prBody: body,
     state,
+    targetBranch,
   }: UpdatePrConfig): Promise<void> {
     let title = prTitle;
     if ((await getPrList()).find((pr) => pr.number === number)?.isDraft) {
@@ -632,6 +634,7 @@ const platform: Platform = {
       title,
       ...(body && { body }),
       ...(state && { state }),
+      base: targetBranch,
     });
   },
 
diff --git a/lib/modules/platform/gitea/types.ts b/lib/modules/platform/gitea/types.ts
index de89f4f46a8765f..bc6d78fc8cab8db 100644
--- a/lib/modules/platform/gitea/types.ts
+++ b/lib/modules/platform/gitea/types.ts
@@ -169,7 +169,6 @@ export interface IssueSearchParams {
 }
 
 export interface PRCreateParams extends PRUpdateParams {
-  base?: string;
   head?: string;
 }
 
@@ -179,6 +178,7 @@ export interface PRUpdateParams {
   assignees?: string[];
   labels?: number[];
   state?: PRState;
+  base?: string;
 }
 
 export interface PRSearchParams {
diff --git a/lib/modules/platform/github/common.ts b/lib/modules/platform/github/common.ts
index 8fac76f9ee052ac..afcbaf72c5c3203 100644
--- a/lib/modules/platform/github/common.ts
+++ b/lib/modules/platform/github/common.ts
@@ -16,6 +16,7 @@ export function coerceRestPr(pr: GhRestPr): GhPr {
     bodyStruct,
     updated_at: pr.updated_at,
     node_id: pr.node_id,
+    targetBranch: pr.base?.ref,
   };
 
   if (pr.head?.sha) {
diff --git a/lib/modules/platform/github/index.spec.ts b/lib/modules/platform/github/index.spec.ts
index 0789f597bcb2058..7b531df325f7a25 100644
--- a/lib/modules/platform/github/index.spec.ts
+++ b/lib/modules/platform/github/index.spec.ts
@@ -2752,6 +2752,7 @@ describe('modules/platform/github/index', () => {
         number: 1234,
         prTitle: 'The New Title',
         prBody: 'Hello world again',
+        targetBranch: 'target_branch',
       };
       const scope = httpMock.scope(githubApiHost);
       initRepoMock(scope, 'some/repo');
@@ -2767,6 +2768,7 @@ describe('modules/platform/github/index', () => {
         prTitle: 'The New Title',
         prBody: 'Hello world again',
         state: 'closed',
+        targetBranch: 'target_branch',
       };
       const scope = httpMock.scope(githubApiHost);
       initRepoMock(scope, 'some/repo');
diff --git a/lib/modules/platform/github/index.ts b/lib/modules/platform/github/index.ts
index a90fb2a4acc819c..33605bc2efedcac 100644
--- a/lib/modules/platform/github/index.ts
+++ b/lib/modules/platform/github/index.ts
@@ -1567,6 +1567,7 @@ export async function updatePr({
   prTitle: title,
   prBody: rawBody,
   state,
+  targetBranch,
 }: UpdatePrConfig): Promise<void> {
   logger.debug(`updatePr(${prNo}, ${title}, body)`);
   const body = sanitize(rawBody);
@@ -1579,6 +1580,7 @@ export async function updatePr({
   }
   const options: any = {
     body: patchBody,
+    base: targetBranch,
   };
   // istanbul ignore if
   if (config.forkToken) {
diff --git a/lib/modules/platform/gitlab/index.spec.ts b/lib/modules/platform/gitlab/index.spec.ts
index 500e7ccb6b86039..c22649e6aefd3e4 100644
--- a/lib/modules/platform/gitlab/index.spec.ts
+++ b/lib/modules/platform/gitlab/index.spec.ts
@@ -2056,7 +2056,12 @@ describe('modules/platform/gitlab/index', () => {
         .put('/api/v4/projects/undefined/merge_requests/1')
         .reply(200);
       await expect(
-        gitlab.updatePr({ number: 1, prTitle: 'title', prBody: 'body' })
+        gitlab.updatePr({
+          number: 1,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).toResolve();
     });
 
@@ -2078,7 +2083,12 @@ describe('modules/platform/gitlab/index', () => {
         .put('/api/v4/projects/undefined/merge_requests/1')
         .reply(200);
       await expect(
-        gitlab.updatePr({ number: 1, prTitle: 'title', prBody: 'body' })
+        gitlab.updatePr({
+          number: 1,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).toResolve();
     });
 
@@ -2100,7 +2110,12 @@ describe('modules/platform/gitlab/index', () => {
         .put('/api/v4/projects/undefined/merge_requests/1')
         .reply(200);
       await expect(
-        gitlab.updatePr({ number: 1, prTitle: 'title', prBody: 'body' })
+        gitlab.updatePr({
+          number: 1,
+          prTitle: 'title',
+          prBody: 'body',
+          targetBranch: 'target_branch',
+        })
       ).toResolve();
     });
 
@@ -2127,6 +2142,7 @@ describe('modules/platform/gitlab/index', () => {
           prTitle: 'title',
           prBody: 'body',
           state: 'closed',
+          targetBranch: 'target_branch',
         })
       ).toResolve();
     });
diff --git a/lib/modules/platform/gitlab/index.ts b/lib/modules/platform/gitlab/index.ts
index 17e6a497288831b..f35b11beb23e93b 100644
--- a/lib/modules/platform/gitlab/index.ts
+++ b/lib/modules/platform/gitlab/index.ts
@@ -675,6 +675,7 @@ export async function updatePr({
   prBody: description,
   state,
   platformOptions,
+  targetBranch,
 }: UpdatePrConfig): Promise<void> {
   let title = prTitle;
   if ((await getPrList()).find((pr) => pr.number === iid)?.isDraft) {
@@ -692,6 +693,7 @@ export async function updatePr({
         title,
         description: sanitize(description),
         ...(newState && { state_event: newState }),
+        target_branch: targetBranch,
       },
     }
   );
diff --git a/lib/modules/platform/types.ts b/lib/modules/platform/types.ts
index bfc54c32251a4c5..fd8f059bef58f63 100644
--- a/lib/modules/platform/types.ts
+++ b/lib/modules/platform/types.ts
@@ -108,6 +108,7 @@ export interface CreatePRConfig {
 }
 export interface UpdatePrConfig {
   number: number;
+  targetBranch: string;
   platformOptions?: PlatformPrOptions;
   prTitle: string;
   prBody?: string;
diff --git a/lib/workers/repository/config-migration/pr/index.ts b/lib/workers/repository/config-migration/pr/index.ts
index c24a1dd1aa472db..1f02da609bfa494 100644
--- a/lib/workers/repository/config-migration/pr/index.ts
+++ b/lib/workers/repository/config-migration/pr/index.ts
@@ -85,6 +85,7 @@ ${
         number: existingPr.number,
         prTitle,
         prBody,
+        targetBranch: 'target_branch',
       });
       logger.info({ pr: existingPr.number }, 'Migration PR updated');
     }
diff --git a/lib/workers/repository/error-config.ts b/lib/workers/repository/error-config.ts
index b580d909f490789..52352f2344e9f67 100644
--- a/lib/workers/repository/error-config.ts
+++ b/lib/workers/repository/error-config.ts
@@ -50,11 +50,26 @@ async function raiseWarningIssue(
 
   const pr = await platform.getBranchPr(config.onboardingBranch!);
   if (pr?.state === 'open') {
-    await handleOnboardingPr(pr, body);
-    return;
-  }
-
-  if (GlobalConfig.get('dryRun')) {
+    logger.debug('Updating onboarding PR with config error notice');
+    body = `## Action Required: Fix Renovate Configuration\n\n${body}`;
+    body += `\n\nOnce you have resolved this problem (in this onboarding branch), Renovate will return to providing you with a preview of your repository's configuration.`;
+    if (GlobalConfig.get('dryRun')) {
+      logger.info(`DRY-RUN: Would update PR #${pr.number}`);
+    } else {
+      try {
+        await platform.updatePr({
+          number: pr.number,
+          prTitle: config.onboardingPrTitle!,
+          prBody: body,
+          targetBranch: 'target_branch',
+        });
+      } catch (err) /* istanbul ignore next */ {
+        logger.warn({ err }, 'Error updating onboarding PR');
+      }
+    }
+  } else if (GlobalConfig.get('dryRun')) {
+    logger.info('DRY-RUN: Would ensure config error issue');
+  } else if (config.suppressNotifications?.includes('configErrorIssue')) {
     logger.info(
       { configError: error },
       'DRY-RUN: Would ensure configuration error issue'
diff --git a/lib/workers/repository/finalize/prune.ts b/lib/workers/repository/finalize/prune.ts
index 88115d6daf50408..04602a866380a06 100644
--- a/lib/workers/repository/finalize/prune.ts
+++ b/lib/workers/repository/finalize/prune.ts
@@ -39,6 +39,7 @@ async function cleanUpBranches(
                 number: pr.number,
                 prTitle: newPrTitle,
                 state: 'open',
+                targetBranch: 'target_branch',
               });
             }
 
@@ -67,6 +68,7 @@ async function cleanUpBranches(
             number: pr.number,
             prTitle: newPrTitle,
             state: 'closed',
+            targetBranch: 'target_branch',
           });
           await scm.deleteBranch(branchName);
         }
diff --git a/lib/workers/repository/onboarding/pr/index.ts b/lib/workers/repository/onboarding/pr/index.ts
index 2bf76f3ee5526b5..b9bd7e9b7ccf17c 100644
--- a/lib/workers/repository/onboarding/pr/index.ts
+++ b/lib/workers/repository/onboarding/pr/index.ts
@@ -156,6 +156,7 @@ If you need any further assistance then you can also [request help here](${
         number: existingPr.number,
         prTitle: existingPr.title,
         prBody,
+        targetBranch: 'target_branch',
       });
       logger.info({ pr: existingPr.number }, 'Onboarding PR updated');
     }
diff --git a/lib/workers/repository/update/pr/index.ts b/lib/workers/repository/update/pr/index.ts
index 0f8a8bef233fe8e..9e1e47ec96a6f92 100644
--- a/lib/workers/repository/update/pr/index.ts
+++ b/lib/workers/repository/update/pr/index.ts
@@ -342,7 +342,7 @@ export async function ensurePr(
         existingPrTitle === newPrTitle &&
         existingPrBodyHash === newPrBodyHash
       ) {
-        // adds or-cache for existing PRs
+        // adds pr-cache for existing PRs
         setPrCache(branchName, prFingerprint, false);
         logger.debug(
           `Pull Request #${existingPr.number} does not need updating`
@@ -372,6 +372,7 @@ export async function ensurePr(
         return { type: 'with-pr', pr: existingPr };
       } else {
         await platform.updatePr({
+          targetBranch: config.baseBranch ?? '',
           number: existingPr.number,
           prTitle,
           prBody,
diff --git a/lib/workers/repository/update/pr/pr-fingerprint.ts b/lib/workers/repository/update/pr/pr-fingerprint.ts
index 5e71b179454af95..e1d49d723cf8c29 100644
--- a/lib/workers/repository/update/pr/pr-fingerprint.ts
+++ b/lib/workers/repository/update/pr/pr-fingerprint.ts
@@ -37,6 +37,7 @@ export interface PrFingerprintConfig {
   pendingVersions?: string[];
 
   filteredUpgrades?: FilteredBranchUpgradeConfig[];
+  baseBranch?: string;
 }
 
 export function generatePrFingerprintConfig(
@@ -74,6 +75,7 @@ export function generatePrFingerprintConfig(
     updateType: config.updateType,
     warnings: config.warnings,
     pendingVersions: config.pendingVersions,
+    baseBranch: config.baseBranch,
   };
 }