diff --git a/util/step/buildMac b/util/step/buildMac
index f4867bf..40d6d55 100755
--- a/util/step/buildMac
+++ b/util/step/buildMac
@@ -4,4 +4,4 @@ STEP=$((STEP+1))
 echo -e "\n> > > > Step №$STEP. Build for macOS"
 
 cd $SDIR/../game/ver-mac
-swift build
+swift build -Xswiftc -swift-version -Xswiftc 6