diff --git a/firestore/solution-sharded-timestamp/package.json b/firestore/solution-sharded-timestamp/package.json
index db7732d0..79dc1784 100644
--- a/firestore/solution-sharded-timestamp/package.json
+++ b/firestore/solution-sharded-timestamp/package.json
@@ -12,6 +12,6 @@
   },
   "dependencies": {
     "@google-cloud/firestore": "^4.4.0",
-    "firebase-admin": "^10.0.0"
+    "firebase-admin": "^13.0.0"
   }
 }