diff --git a/.github/workflows/checkimage.yaml b/.github/workflows/checkimage.yaml
index d3ae8452a..4000ada2e 100644
--- a/.github/workflows/checkimage.yaml
+++ b/.github/workflows/checkimage.yaml
@@ -29,3 +29,4 @@ jobs:
         uses: peter-evans/create-pull-request@v6
         with:
           title: 'chore(image): update base image'
+          branch: automation/base-image
diff --git a/.github/workflows/ruby-update.yml b/.github/workflows/ruby-update.yml
index 3a3818456..d9e860002 100644
--- a/.github/workflows/ruby-update.yml
+++ b/.github/workflows/ruby-update.yml
@@ -27,6 +27,7 @@ jobs:
         uses: peter-evans/create-pull-request@v6
         with:
           title: 'chore(devel): update .ruby-version'
+          branch: automation/ruby-version
   update-bundler:
     runs-on: ubuntu-latest
     env:
@@ -52,3 +53,4 @@ jobs:
         uses: peter-evans/create-pull-request@v6
         with:
           title: 'chore(deps): update bundler version'
+          branch: automation/bundler-version