diff --git a/package.json b/package.json
index 54f3dfa..412b5c6 100644
--- a/package.json
+++ b/package.json
@@ -18,12 +18,12 @@
     "diagnostics-pagelet": "1.0.x"
   },
   "devDependencies": {
-    "assume": "0.0.x",
-    "istanbul": "0.3.x",
-    "mocha": "2.1.x",
-    "pre-commit": "0.0.x",
+    "assume": "~1.4.1",
+    "istanbul": "~0.4.5",
+    "mocha": "~3.1.2",
+    "pre-commit": "~1.1.3",
     "routable": "0.0.x",
-    "temper": "0.2.x"
+    "temper": "~0.3.2"
   },
   "keywords": [
     "Pagelet",