diff --git a/Dockerfile b/Dockerfile
index 26edb3a..eb2c15f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,7 +17,7 @@ RUN sudo apk update && sudo apk add alpine-sdk m4 perl gmp-dev \
 && rm -rf /home/opam/opam-repository
 
 # move to leaner image with zest server
-FROM jptmoore/zest:v0.0.3
+FROM jptmoore/zest:v0.0.4
 
 USER root
 WORKDIR /app/zest/