diff --git a/Dockerfile b/Dockerfile
index dc4da146f038c9b6789ad3924c1f89ee9e698d10..b539e20435fd9af7c673f112bb5a661ebbfcd4c6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ COPY feedbackloop.sh /usr/local/bin/feedbackloop
 RUN apt-get -q update && \
     env DEBIAN_FRONTEND=noninteractive apt-get -qy install --no-install-recommends \
         python3-flask python3-sqlalchemy python3-flask-sqlalchemy python3-cheroot \
-        python3-setuptools python3-pip && \
+        python3-setuptools python3-pip python3-virtualenv && \
     apt-get clean && \
     rm -fr /var/lib/apt/lists/* && \
     virtualenv /virtualenv && \