diff --git a/coreSubProjects b/coreSubProjects
index 127ec81ad..6595f5d90 160000
--- a/coreSubProjects
+++ b/coreSubProjects
@@ -1 +1 @@
-Subproject commit 127ec81adeba783cb5a90c56add2422b65ad39b3
+Subproject commit 6595f5d90efccac02f5a3c635bc45f11cfb0d3d3
diff --git a/gradle.properties b/gradle.properties
index b11590aa6..da0053c21 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -48,7 +48,7 @@ versionStr=
 
 # This defines what MC version Intellij will use for the preprocessor
 # and what version is used automatically by build and run commands
-mcVer=1.20.1
+mcVer=1.21.1
 
 # Defines the maximum amount of memory Minecraft is allowed when run in a development environment
 #minecraftMemoryJavaArg="-Xmx4G"