diff --git a/quartz/main.qz b/quartz/main.qz
index fa7005a4..c88b0631 100644
--- a/quartz/main.qz
+++ b/quartz/main.qz
@@ -274,7 +274,7 @@ module CliCommand {
 }
 
 fun start(): nil or error {
-    let compiler_version = "2.11.2";
+    let compiler_version = "2.12.0";
 
     let args = args();
     let command or err = CliCommand::parse(args.slice(1, args.length));