diff --git a/tests/ghw_reprocess_all_images.test.ts b/tests/ghw_reprocess_all_images.test.ts
index c53a3462..823b9708 100644
--- a/tests/ghw_reprocess_all_images.test.ts
+++ b/tests/ghw_reprocess_all_images.test.ts
@@ -462,6 +462,7 @@ describe('Github Workflow: Re-Process All Images', () => {
                         ok: fetchReturnedStatus.ok,
                         status: fetchReturnedStatus.status,
                         body: fetchReturnedStatus.body,
+                        // @ts-expect-error Buffer <> ArrayBuffer (props not used)
                         arrayBuffer: (): ArrayBuffer => readFileSync(getImageOriginalDirPath((input as string).split('/').pop()!)),
                     };
                 },
@@ -762,6 +763,7 @@ describe('Github Workflow: Re-Process All Images', () => {
                         ok: fetchReturnedStatus.ok,
                         status: fetchReturnedStatus.status,
                         body: fetchReturnedStatus.body,
+                        // @ts-expect-error Buffer <> ArrayBuffer (props not used)
                         arrayBuffer: (): ArrayBuffer => readFileSync(getImageOriginalDirPath(fileName)),
                     };
                 },
diff --git a/tests/process_firmware_image.test.ts b/tests/process_firmware_image.test.ts
index 4b9cbf79..875f7ec2 100644
--- a/tests/process_firmware_image.test.ts
+++ b/tests/process_firmware_image.test.ts
@@ -134,6 +134,7 @@ describe('Process Firmware Image', () => {
                     ok: fetchReturnedStatus.ok,
                     status: fetchReturnedStatus.status,
                     body: fetchReturnedStatus.body,
+                    // @ts-expect-error Buffer <> ArrayBuffer (props not used)
                     arrayBuffer: (): ArrayBuffer => readFileSync(getImageOriginalDirPath(input as string)),
                 };
             },