diff --git a/build/docker/ubuntu/Dockerfile b/build/docker/ubuntu/Dockerfile
index 7792aae..7d245e8 100644
--- a/build/docker/ubuntu/Dockerfile
+++ b/build/docker/ubuntu/Dockerfile
@@ -94,6 +94,7 @@
 RUN apt-get update && apt-get install -y --no-install-recommends \
 `# Ruby dependencies` \
       ruby \
+      ruby-bundler \
       ruby-dev \
 `# Perl dependencies` \
       libbit-vector-perl \