diff --git a/Dockerfile b/Dockerfile
index eac178780..6b2c50694 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ RUN DEBIAN_FRONTEND=noninteractive \
     apt-get -qq update && \
     apt-get -qq install \
     ca-certificates nginx php5-fpm=5.* php5-curl php5-readline php5-mcrypt php5-mysql php5-apcu php5-cli \
-    git sqlite libsqlite3-dev curl supervisor php5-pgsql && \
+    git sqlite libsqlite3-dev curl supervisor cron php5-pgsql && \
     apt-get clean && apt-get autoremove -qq && \
     rm -rf /var/lib/apt/lists/* /usr/share/doc /usr/share/man /tmp/*