diff --git a/functions/spanner/package.json b/functions/spanner/package.json
index c898e0c2b1..cfb09136ac 100644
--- a/functions/spanner/package.json
+++ b/functions/spanner/package.json
@@ -15,7 +15,7 @@
     "test": "mocha test/*.test.js --timeout=20000"
   },
   "dependencies": {
-    "@google-cloud/spanner": "^5.0.0"
+    "@google-cloud/spanner": "^6.0.0"
   },
   "devDependencies": {
     "mocha": "^8.0.0",