diff --git a/docker/Dockerfile b/docker/Dockerfile
index 52eb6cadfd..e271fc8589 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -35,6 +35,7 @@ RUN apk update && \
       yaml-dev \
       zlib-dev \
       ncurses-dev \
+      git \
     && echo "gem: --no-ri --no-rdoc" > /etc/gemrc \
     && bundle install --system $BUNDLER_ARGS \
     && apk del .ruby-builddeps \