diff --git a/package.json b/package.json
index f097aff..c8fe0a4 100644
--- a/package.json
+++ b/package.json
@@ -25,11 +25,11 @@
     "lolex": "^2.3.2",
     "mkdirp": "^0.5.1",
     "mocha": "^5.0.5",
-    "mocha-headless-chrome": "^1.8.2",
+    "mocha-headless-chrome": "^2.0.0",
     "requirejs": "^2.3.5",
     "run-for-every-file": "^1.1.0",
     "shenanigans-manager": "^0.2.28",
-    "sinon": "^4.5.0",
+    "sinon": "^5.0.1",
     "sinon-chai": "^3.0.0",
     "tslint": "5.9.1",
     "tsutils": "^2.26.1",