diff --git a/docker/decaf/Dockerfile b/docker/decaf/Dockerfile
index 28e131ba..87f71bf8 100644
--- a/docker/decaf/Dockerfile
+++ b/docker/decaf/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:xenial-20210416
 
 RUN apt-get update 
 RUN apt-get install libsdl1.2-dev -y