diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 7d95099ce985..d5a9291e707b 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -38,10 +38,10 @@
 /components/    @azhavoro
 
 # Component: Tests
-/tests/         @yasakova-anastasia
+/tests/         @kirill-sizov
 
 # Component: Serverless functions
-/serverless/    @yasakova-anastasia
+/serverless/    @kirill-sizov
 
 # Infrastructure
 Dockerfile*     @azhavoro
diff --git a/.github/workflows/hadolint.yml b/.github/workflows/hadolint.yml
index aa81751ab536..9529f69becba 100644
--- a/.github/workflows/hadolint.yml
+++ b/.github/workflows/hadolint.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Run checks
         env:
           HADOLINT: "${{ github.workspace }}/hadolint"
-          HADOLINT_VER: "2.1.0"
+          HADOLINT_VER: "2.12.0"
           VERIFICATION_LEVEL: "error"
         run: |
           CHANGED_FILES="${{steps.files.outputs.all_changed_files}}"
diff --git a/cvat/apps/engine/backup.py b/cvat/apps/engine/backup.py
index ee994bc81907..799b217c2d95 100644
--- a/cvat/apps/engine/backup.py
+++ b/cvat/apps/engine/backup.py
@@ -364,7 +364,7 @@ def _write_data(self, zip_object, target_dir=None):
                 target_dir=target_data_dir,
             )
         else:
-            raise NotImplementedError()
+            raise NotImplementedError("We don't currently support backing up tasks with data from cloud storage")
 
     def _write_task(self, zip_object, target_dir=None):
         task_dir = self._db_task.get_dirname()