diff --git a/Dockerfile b/Dockerfile
index 43280b4..c729097 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -35,6 +35,7 @@ RUN apk add --no-cache bash \
     php5-phar \
     php5-soap \
     php5-dom \
+    php5-zip \
     python \
     python-dev \
     py-pip \