diff --git a/docker/Dockerfile b/docker/Dockerfile
index 4bb665e54..d32759d3a 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -15,6 +15,7 @@ RUN echo 'deb http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu bionic mai
 
 RUN apt-get update && apt-get install -y \
     cmake \
+    fonts-dejavu \
     locales\
     python3 \
     python3-dev \
diff --git a/output_template/python/requirements.txt b/output_template/python/requirements.txt
index b991e8297..b24ab0185 100644
--- a/output_template/python/requirements.txt
+++ b/output_template/python/requirements.txt
@@ -3,3 +3,7 @@ easydict==1.9
 numpy==1.18.1
 Pillow==6.2.2
 PyYAML==5.3
+
+# for python2
+enum34==1.1.6
+six==1.11.0