diff --git a/.gitea/workflows/post-merge.yml b/.gitea/workflows/post-merge.yml
index 6f173e7..dc459f5 100644
--- a/.gitea/workflows/post-merge.yml
+++ b/.gitea/workflows/post-merge.yml
@@ -78,6 +78,18 @@ jobs:
           set -euo pipefail
           . .venv/bin/activate
           python3 scripts/ci/release.py
+      - name: Notify on failure
+        if: failure()
+        env:
+          REPO_TOKEN: ${{ secrets.REPO_TOKEN }}
+          PYTHONPATH: src
+        run: |
+          set -euo pipefail
+          python3 scripts/ci/notify_failure.py \
+            --repo "${{ github.repository }}" \
+            --run-id "${{ github.run_id }}" \
+            --workflow "post-merge/release" \
+            --commit "${{ github.sha }}"
 
   sync-wiki:
     needs: [detect-type]
@@ -98,6 +110,18 @@ jobs:
           set -euo pipefail
           . .venv/bin/activate
           python3 scripts/ci/sync_wiki.py --repo "${{ github.repository }}" --strict
+      - name: Notify on failure
+        if: failure()
+        env:
+          REPO_TOKEN: ${{ secrets.REPO_TOKEN }}
+          PYTHONPATH: src
+        run: |
+          set -euo pipefail
+          python3 scripts/ci/notify_failure.py \
+            --repo "${{ github.repository }}" \
+            --run-id "${{ github.run_id }}" \
+            --workflow "post-merge/sync-wiki" \
+            --commit "${{ github.sha }}"
 
   badges:
     needs: [detect-type]
@@ -134,6 +158,18 @@ jobs:
           git add *.svg
           git commit --no-verify -m "Update badges [skip ci]"
           git push origin badges --force
+      - name: Notify on failure
+        if: failure()
+        env:
+          REPO_TOKEN: ${{ secrets.REPO_TOKEN }}
+          PYTHONPATH: src
+        run: |
+          set -euo pipefail
+          python3 scripts/ci/notify_failure.py \
+            --repo "${{ github.repository }}" \
+            --run-id "${{ github.run_id }}" \
+            --workflow "post-merge/badges" \
+            --commit "${{ github.sha }}"
 
   vikunja:
     needs: [detect-type]
@@ -155,3 +191,15 @@ jobs:
           python3 scripts/ci/post_merge.py \
             "$(git log -1 --pretty=%B)" \
             --commit-sha "$(git rev-parse HEAD)"
+      - name: Notify on failure
+        if: failure()
+        env:
+          REPO_TOKEN: ${{ secrets.REPO_TOKEN }}
+          PYTHONPATH: src
+        run: |
+          set -euo pipefail
+          python3 scripts/ci/notify_failure.py \
+            --repo "${{ github.repository }}" \
+            --run-id "${{ github.run_id }}" \
+            --workflow "post-merge/vikunja" \
+            --commit "${{ github.sha }}"