diff --git a/Makefile b/Makefile
index 4cd6643..e06a58a 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ RAR = "C:/Program Files/WinRAR/Rar.exe"
 GIT = ./MinGit/cmd/git.exe
 
 FactoryBluePrints.rar: .git 双击更新蓝图仓库.bat MinGit
-	$(GIT) gc --aggressive --prune=now
+	$(GIT) repack -a -d --depth=4095 --window=4095
 	$(RAR) a -ma5 -md1024 -m5 -mt32 -htb -rr5p -QO+ $@ $^
 
 clear: