diff --git a/Dockerfile b/Dockerfile
index 4c8ccd4..de449e4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,7 @@ RUN rm /tmp/install.sh
 
 # Install additionally helm plugins
 RUN helm plugin install https://github.com/chartmuseum/helm-push.git && \
-    helm plugin install https://github.com/helm-unittest/helm-unittest.git
+    helm plugin install https://github.com/helm-unittest/helm-unittest.git && \
+    helm plugin install https://github.com/losisin/helm-values-schema-json.git
 
 ENTRYPOINT [ "/usr/local/bin/helm" ]