diff --git a/workspace/Dockerfile b/workspace/Dockerfile
index 4eb0e4ae..40603edb 100644
--- a/workspace/Dockerfile
+++ b/workspace/Dockerfile
@@ -23,6 +23,7 @@ RUN apt-get update \
         php7.0-common \
         php7.0-curl \
         php7.0-json \
+        php7.0-xml \
         php7.0-mbstring \
         php7.0-mcrypt \
         php7.0-mysql \