diff --git a/docker/build-stretch/Dockerfile b/docker/build-stretch/Dockerfile
index e60cfb0..339ae9f 100644
--- a/docker/build-stretch/Dockerfile
+++ b/docker/build-stretch/Dockerfile
@@ -2,8 +2,8 @@ FROM debian:stretch
 RUN apt-get update -qq
 RUN apt-get install -q -y build-essential python-cffi python3-cffi libffi-dev \
     python-all python3-all python-dev python3-dev python-setuptools \
-    python3-setuptools python-pip rpm tar gzip bzip2 git debhelper \
-    ca-certificates
+    python3-setuptools python-pip python3-pip rpm tar gzip bzip2 git \
+    debhelper ca-certificates
 ADD ./requirements.txt ./requirements.txt
 RUN pip install --user pip
 RUN pip install --user -r requirements.txt