diff --git a/package.json b/package.json
index 646a661..400a491 100644
--- a/package.json
+++ b/package.json
@@ -7,12 +7,12 @@
     "url": "https://github.com/shouldjs/sinon/issues"
   },
   "devDependencies": {
-    "eslint": "^1.10.3",
+    "eslint": "^4.10.0",
     "eslint-config-shouldjs": "^1.0.2",
-    "mocha": "^3.5.0",
+    "mocha": "^4.0.1",
     "mocha-better-spec-reporter": "^3.1.0",
-    "should": "^12.0.0",
-    "sinon": "^3.2.1"
+    "should": "^13.1.3",
+    "sinon": "^4.1.2"
   },
   "homepage": "https://github.com/shouldjs/sinon",
   "keywords": [