diff --git a/hosts/sparrow.json b/hosts/sparrow.json
index 3c4510f..3c62b71 100644
--- a/hosts/sparrow.json
+++ b/hosts/sparrow.json
@@ -53,11 +53,11 @@
     ]
   },
   "git": {
-    "gpgSign": false,
+    "gpgSign": true,
     "user": {
       "email": "daangling@gmail.com",
       "name": "Dan Anglin",
-      "signingKey": ""
+      "signingKey": "DC7C2989B0E30FEA"
     }
   },
   "managedConfigurations": [