diff --git a/Dockerfile b/Dockerfile
index 88a891973f..be804426e6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,9 @@
-FROM alpine
+FROM debian:buster-slim
 
 RUN apk add --update --no-cache bash curl jq
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+      jq \
+      php-json-schema && 
 
-CMD ["sh"]
+CMD ["bash"]