diff --git a/crates/sui-framework/packages/sui-system/Move.lock b/crates/sui-framework/packages/sui-system/Move.lock
index a5b11a5ebb2b1..af204d00c7990 100644
--- a/crates/sui-framework/packages/sui-system/Move.lock
+++ b/crates/sui-framework/packages/sui-system/Move.lock
@@ -23,6 +23,6 @@ dependencies = [
 ]
 
 [move.toolchain-version]
-compiler-version = "1.29.0"
-edition = "2024.beta"
+compiler-version = "1.22.0"
+edition = "legacy"
 flavor = "sui"