diff --git a/package.json b/package.json
index e746ad4..ca80236 100644
--- a/package.json
+++ b/package.json
@@ -17,10 +17,10 @@
     "pagelet": "0.9.x"
   },
   "devDependencies": {
-    "assume": "1.2.x",
-    "istanbul": "0.3.x",
-    "mocha": "2.2.x",
-    "pre-commit": "1.0.x",
+    "assume": "~1.4.1",
+    "istanbul": "~0.4.5",
+    "mocha": "~3.1.2",
+    "pre-commit": "~1.1.3",
     "routable": "0.0.x",
     "temper": "0.3.x"
   },