diff --git a/.github/workflows/groovy-joint-workflow.yml b/.github/workflows/groovy-joint-workflow.yml
index 3383698559d..de49d8bc68e 100644
--- a/.github/workflows/groovy-joint-workflow.yml
+++ b/.github/workflows/groovy-joint-workflow.yml
@@ -49,9 +49,9 @@ jobs:
             ~/groovy
             ~/.m2/repository
           key: cache-local-groovy-maven-${{ github.sha }}
-      - name: Checkout Groovy 3_0_X (Grails 5 and later)
+      - name: Checkout Groovy 3_0_21 (Grails 5 and later)
         if: startsWith(github.ref, 'refs/heads/6.') || startsWith(github.base_ref, '6.') || startsWith(github.ref, 'refs/heads/5.') || startsWith(github.base_ref, '5.')
-        run: cd .. && git clone --depth 1 https://github.com/apache/groovy.git -b GROOVY_3_0_X --single-branch
+        run: cd .. && git clone --depth 1 https://github.com/apache/groovy.git -b GROOVY_3_0_21 --single-branch
       - name: Set CI_GROOVY_VERSION for Grails
         id: groovy-version
         run: |