diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 95536782..be9a5fd1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -159,9 +159,7 @@ jobs:
   deploy:
     if: |
       github.event.inputs.deploy == 'true' ||
-      github.event_name == 'release' ||
-      github.event_name == 'push' && github.ref_name == 'master' ||
-      github.event_name == 'push' && startsWith(github.ref_name, 'release-v')
+      github.event_name == 'release' && !github.event.release.prerelease
 
     # Only deploy if all tests passed.
     needs: [ci]