diff --git a/appengine/analytics/package.json b/appengine/analytics/package.json
index 33a50fa0ae..22841a6397 100644
--- a/appengine/analytics/package.json
+++ b/appengine/analytics/package.json
@@ -24,7 +24,8 @@
     "got": "8.2.0"
   },
   "devDependencies": {
-    "@google-cloud/nodejs-repo-tools": "2.2.1"
+    "@google-cloud/nodejs-repo-tools": "2.2.1",
+    "semistandard": "^12.0.1"
   },
   "cloud-repo-tools": {
     "test": {
diff --git a/appengine/datastore/package.json b/appengine/datastore/package.json
index f9cc1f649f..4cbd13ba5d 100644
--- a/appengine/datastore/package.json
+++ b/appengine/datastore/package.json
@@ -24,7 +24,8 @@
     "express": "4.16.2"
   },
   "devDependencies": {
-    "@google-cloud/nodejs-repo-tools": "2.2.1"
+    "@google-cloud/nodejs-repo-tools": "2.2.1",
+    "semistandard": "^12.0.1"
   },
   "cloud-repo-tools": {
     "test": {