diff --git a/Dockerfile b/Dockerfile
index 2a9cc6f..18526ab 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM logicify/python3
+FROM logicify/python3:3.5.6
 MAINTAINER "Dmitry Berezovsky <dmitry.berezovsky@logicify.com>"
 
 ENV APP_PROCESS_NAME="wsgi-application"