diff --git a/.github/workflows/changelo.yml b/.github/workflows/changelo.yml
index a7c2057..10e2aef 100644
--- a/.github/workflows/changelo.yml
+++ b/.github/workflows/changelo.yml
@@ -13,15 +13,13 @@ jobs:
   update-changelog:
     runs-on: ubuntu-latest
     name: changelog generator
-    timeout-minutes: 2
     # if: "!contains(github.event.head_commit.message, 'skip')"
     steps:
     # To use this repository's private action, you must check out the repository
     - name: Checkout
       uses: actions/checkout@v2.3.4
       with:
-        fetch-depth: 0
-        submodules: 'true'
+        fetch-depth: 5
 
     # https://github.com/marketplace/actions/tag-changelog
     - name: create changelog text
@@ -30,7 +28,7 @@ jobs:
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
         skip-version-file: true
-        skip-commit: false
+        skip-commit: true
         release-count: 0
 
     - name: read 'templates/changelog'
@@ -71,6 +69,7 @@ jobs:
     -
       name: create pull request
       uses: peter-evans/create-pull-request@v3.8.2
+      if: ${{ steps.ch.outputs.tag }}
       # if: ${{ steps.ch.outputs.skipped == 'true' }}
       # issue: https://github.com/peter-evans/create-pull-request/issues/48
       id: cpr