diff --git a/Dockerfile b/Dockerfile
index 69762c9..fba9df2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM docker:dind
 
-RUN apk add --update python3 && ln -sf python3 /usr/bin/python
+RUN apk add --update python3.6 && ln -sf python3 /usr/bin/python
 RUN apk update && apk add postgresql-dev gcc python3-dev musl-dev jpeg-dev zlib-dev libjpeg
 RUN apk add py3-pip
 RUN python3 -m venv venv