diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..195a277
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.secret filter=git-crypt diff=git-crypt
diff --git a/modules/home-manager/git.nix b/modules/home-manager/git.nix
index 0719b47..3cf716f 100644
--- a/modules/home-manager/git.nix
+++ b/modules/home-manager/git.nix
@@ -7,6 +7,7 @@
 {
   home.packages = with pkgs; [
     git-credential-oauth
+    git-crypt
   ];
 
   programs.git = {