diff --git a/events/docker/Dockerfile b/events/docker/Dockerfile
index 450b31fdb..f2d17754a 100644
--- a/events/docker/Dockerfile
+++ b/events/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3-slim
+FROM python:3.7-slim
 
 ADD tools /src/tools
 ADD events /src/events