diff --git a/Dockerfile b/Dockerfile
index 4d86782..d23c91d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
 # this Dockerfile copied from https://github.com/kobaltcore/renkit/blob/master/Dockerfile
 
 FROM ubuntu:22.04
-ARG renpy_version=8.4.1
-ARG renkit_version=latest
+ARG renpy_version=8.5.2
+ARG renkit_version=6.1.0
 
 ENV DEBIAN_FRONTEND=noninteractive