diff --git a/.github/workflows/bump_patch_version.yml b/.github/workflows/bump_patch_version.yml
index ffc0db16ed..a56051e695 100644
--- a/.github/workflows/bump_patch_version.yml
+++ b/.github/workflows/bump_patch_version.yml
@@ -9,7 +9,7 @@ on:
 
 concurrency:
   # Allow only one workflow per any non-`main` branch.
-  group: ${{ github.workflow }}-${{ github.event.input.branch }}
+  group: ${{ github.workflow }}-${{ inputs.branch }}
   cancel-in-progress: true
 
 jobs: