diff --git a/samples/package.json b/samples/package.json
index 6c01e93cd..36b689f72 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -17,13 +17,13 @@
     "test": "repo-tools test run --cmd npm -- run cover"
   },
   "dependencies": {
-    "@google-cloud/pubsub": "0.16.2",
+    "@google-cloud/pubsub": "0.20.0",
     "yargs": "10.1.2"
   },
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "3.3.0",
-    "ava": "^0.25.0",
-    "nyc": "^11.3.0",
+    "ava": "^4.0.0",
+    "nyc": "^15.0.0",
     "proxyquire": "1.8.0",
     "sinon": "4.5.0",
     "uuid": "^3.1.0"