diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index fe898523..85d175ad 100644
--- a/.github/workflows/update-flake.yml
+++ b/.github/workflows/update-flake.yml
@@ -26,20 +26,24 @@ jobs:
         run: >
           nix flake update
 
+      - name: Generate branch name
+        id: branch
+        run: echo branch="pkgs-weekly-update-$(date "+%Y.%V")" >> "$GITHUB_OUTPUT"
+
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v6
         with:
           add-paths: |
             flake.lock
-          title: "flake: automatic update of nix flake inputs"
+          title: "flake: weekly update of nix flake inputs (${{ steps.branch.outputs.branch }})"
           body: |
             Update nix flake inputs to the latest revision.
             PR auto-generated by [create-pull-request][1].
 
             [1]: https://github.com/peter-evans/create-pull-request
-          branch: flake-update-action-pr
+          branch: "${{ steps.branch.outputs.branch }}"
           delete-branch: true
-          commit-message: "flake: update nix flake inputs"
+          commit-message: "flake: weekly update of nix flake inputs "
           committer: GitHub <noreply@github.com>
           author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
           assignees: imincik