2 files changed, 3 insertions, 0 deletions
diff --git a/docker/Dockerfile b/docker/Dockerfile
index afd896ffc1..d619ee08ed 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -28,11 +28,13 @@ RUN apt-get update && apt-get install -y \
     libwebp-dev \
     libxml++2.6-dev \
     libxslt1-dev \
+    rustc \
     zlib1g-dev \
  && rm -rf /var/lib/apt/lists/*
 
 # Build dependencies that are not available as wheels, to speed up rebuilds
 RUN pip install --prefix="/install" --no-warn-script-location \
+        cryptography \
         frozendict \
         jaeger-client \
         opentracing \
diff --git a/docker/Dockerfile-dhvirtualenv b/docker/Dockerfile-dhvirtualenv
index e529293803..0d74630370 100644
--- a/docker/Dockerfile-dhvirtualenv
+++ b/docker/Dockerfile-dhvirtualenv
@@ -27,6 +27,7 @@ RUN env DEBIAN_FRONTEND=noninteractive apt-get install \
         wget
 
 # fetch and unpack the package
+# TODO: Upgrade to 1.2.2 once xenial is dropped
 RUN mkdir /dh-virtualenv
 RUN wget -q -O /dh-virtualenv.tar.gz https://github.com/spotify/dh-virtualenv/archive/ac6e1b1.tar.gz
 RUN tar -xv --strip-components=1 -C /dh-virtualenv -f /dh-virtualenv.tar.gz