diff --git a/.github/workflows/promote-release.yml b/.github/workflows/promote-release.yml
index c4a6581c7..5512c8be5 100644
--- a/.github/workflows/promote-release.yml
+++ b/.github/workflows/promote-release.yml
@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
     inputs:
       rc_tag:
-        description: "RC tag to promote (e.g., v1.1.0-rc1)"
+        description: "RC tag to promote (e.g., v1.3.0-rc.1)"
         required: true
         type: string
 
@@ -30,7 +30,7 @@ jobs:
           GH_TOKEN: ${{ steps.app-token.outputs.token }}
           RC_TAG: ${{ inputs.rc_tag }}
         run: |
-          if ! echo "$RC_TAG" | grep -qE '^v[0-9]+\.[0-9]+\.[0-9]+-rc[0-9]+$'; then
+          if ! echo "$RC_TAG" | grep -qE '^v[0-9]+\.[0-9]+\.[0-9]+-rc\.[0-9]+$'; then
             echo "::error::Invalid RC tag format: $RC_TAG (expected v*.*.*-rc*)"
             exit 1
           fi