diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 391479aa..ba588c86 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -58,7 +58,8 @@ jobs:
 
   update-homebrew:
     needs: publish
-    if: github.event_name == 'release'
+    # Only update homebrew for stable releases, not prereleases (alpha, beta, rc)
+    if: github.event_name == 'release' && !github.event.release.prerelease
     runs-on: ubuntu-latest
     steps:
       - name: Trigger Homebrew formula update