Update package.json

libraries/metrics/package.json

@@ -12,7 +12,7 @@
     "prom-client": "^11.1.3",
     "underscore": "~1.6.0",
     "@google-cloud/debug-agent": "^3.0.0",
-    "@google-cloud/profiler": "0.2.3",
+    "@google-cloud/profiler": "^0.2.3",
     "@google-cloud/trace-agent": "^3.2.0"
   },
   "devDependencies": {