diff --git a/home/applications/git/default.nix b/home/applications/git/default.nix
index 81e7c0f..dbc4e25 100644
--- a/home/applications/git/default.nix
+++ b/home/applications/git/default.nix
@@ -1,15 +1,14 @@
 {
   programs.git = {
     enable = true;
+    delta.enable = true;
+
     userName = "Guanran Wang";
     userEmail = "guanran928@outlook.com";
-    delta.enable = true;
     signing.signByDefault = true;
-    signing.key = "~/.ssh/id_github_signing";
-    extraConfig = {
-      gpg.format = "ssh";
-      pull.rebase = true;
-    };
+    signing.key = "91F97D9ED12639CF";
+
+    extraConfig.pull.rebase = true;
   };
 
   programs.gh.enable = true;