diff --git a/kubernetes/Dockerfile b/kubernetes/Dockerfile
index b52e227c08..2e1368b6d8 100644
--- a/kubernetes/Dockerfile
+++ b/kubernetes/Dockerfile
@@ -1,4 +1,4 @@
-FROM python
+FROM python:3.7.11-slim-buster
 
 COPY kubernetes/requirements.txt /requirements.txt