diff --git a/.github/workflows/publish_gem.yml b/.github/workflows/publish_gem.yml
index c9dd3360..9e772fb3 100644
--- a/.github/workflows/publish_gem.yml
+++ b/.github/workflows/publish_gem.yml
@@ -26,7 +26,7 @@ jobs:
 
       - name: Update version
         run: |
-          sed -i 's/".*"/"${{ inputs.version }}"/' version.rb
+          sed -i 's/".*"/"${{ inputs.version }}"/' lib/simple_calendar/version.rb
           bundle
           bundle exec appraisal
           git config user.name 'GitHub Actions'