diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 13b37ad0..7505abdd 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -42,6 +42,11 @@ jobs:
         with:
           distribution: temurin
           java-version: 17
+      - uses: sdkman/sdkman-action@v1
+        id: sdkman
+        with:
+          candidate: groovy
+          version: ${{ matrix.groovy-version }}
       - name: full test
         run: >-
           ./mvnw ${MAVEN_ARGS} ${MVN_GROOVY_GROUP_ID} ${MVN_GROOVY_VERSION}