diff --git a/experimental/generation/generator/packages/library/package.json b/experimental/generation/generator/packages/library/package.json
index f4bb0124c8..0db0831b46 100644
--- a/experimental/generation/generator/packages/library/package.json
+++ b/experimental/generation/generator/packages/library/package.json
@@ -28,8 +28,8 @@
     "botbuilder-ai": "latest",
     "botbuilder-core": "latest",
     "mocha": "^5.2.0",
-    "nyc": "^14.1.1",
-    "rimraf": "^3.0.2",
+    "nyc": "^15.0.0",
+    "rimraf": "^4.0.0",
     "source-map-support": "0.5.19",
     "ts-node": "^8.8.2",
     "tslint": "^5.18.0",