diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index d49709c..3ced11c 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -20,3 +20,6 @@ jobs:
 
     - name: Run check
       run: ./gradlew check
+
+    - name: Build Docker image
+      run: ./gradlew buildImage