diff --git a/Retro68/multiversal/ppc/Dockerfile b/Retro68/multiversal/ppc/Dockerfile
index 71f547f..af8470d 100644
--- a/Retro68/multiversal/ppc/Dockerfile
+++ b/Retro68/multiversal/ppc/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:latest
+FROM ubuntu:22.04
 
 LABEL description="Retro68 cross compiler environment with cmake alias for PowerPC development."