diff --git a/package.json b/package.json
index 8ac7b58..0d0eac6 100644
--- a/package.json
+++ b/package.json
@@ -30,14 +30,14 @@
   "homepage": "https://github.com/observing/pre-commit",
   "license": "MIT",
   "dependencies": {
-    "cross-spawn": "^4.0.0",
+    "cross-spawn": "^5.0.1",
     "spawn-sync": "^1.0.15",
     "which": "1.2.x"
   },
   "devDependencies": {
     "assume": "1.4.x",
     "istanbul": "0.4.x",
-    "mocha": "2.4.x",
+    "mocha": "~3.1.2",
     "pre-commit": "git://github.com/observing/pre-commit.git"
   }
 }