diff --git a/package.json b/package.json
index 1001ad42..358cb5fc 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "scripts": {
     "setup": "npm install && npm run flow-typed",
     "lint": "eslint src/ test/ *.js",
-    "flow-typed": "flow-typed install",
+    "flow-typed": "rm -rf flow-typed && flow-typed install",
     "flow": "flow",
     "flow:build": "flow gen-flow-files ./src/index.js --out-dir ./dist/module",
     "karma": "cross-env NODE_ENV=test babel-node --plugins=transform-es2015-modules-commonjs ./node_modules/.bin/karma start",
@@ -48,9 +48,9 @@
   ],
   "readmeFilename": "README.md",
   "devDependencies": {
-    "flow-bin": "0.x.x",
+    "flow-bin": "^0.76",
     "grumbler-scripts": "^2.0.18",
-    "mocha": "^3.5.3"
+    "mocha": "^4"
   },
   "dependencies": {
     "cross-domain-safe-weakmap": "^1.0.1",