diff --git a/Dockerfile b/Dockerfile
index 5086810..212fee5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,8 +2,8 @@ FROM ubuntu:22.04
 
 # The GS_VERSION argument could be used like this to overwrite the default:
 # docker build --build-arg GS_VERSION=2.21.2 -t geoserver:2.21.2 .
-ARG TOMCAT_VERSION=9.0.65
-ARG GS_VERSION=2.21.1
+ARG TOMCAT_VERSION=9.0.68
+ARG GS_VERSION=2.22-RC
 ARG GS_DATA_PATH=./geoserver_data/
 ARG ADDITIONAL_LIBS_PATH=./additional_libs/
 ARG ADDITIONAL_FONTS_PATH=./additional_fonts/