diff --git a/History.md b/History.md
index 33ec45c..cfa7b32 100644
--- a/History.md
+++ b/History.md
@@ -1,4 +1,9 @@
 
+0.12.2 / 2014-09-28
+==================
+
+ * use wider semver ranges for dependencies koa maintainers also maintain
+
 0.12.1 / 2014-09-21
 ==================
 
diff --git a/package.json b/package.json
index 4fc49e5..d5d8c7d 100644
--- a/package.json
+++ b/package.json
@@ -18,28 +18,28 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "accepts": "~1.1.0",
-    "co": "~3.1.0",
+    "accepts": "^1.1.0",
+    "co": "^3.1.0",
     "content-disposition": "~0.3.0",
     "cookies": "~0.5.0",
     "debug": "*",
     "delegates": "0.0.3",
-    "destroy": "~1.0.3",
+    "destroy": "^1.0.3",
     "error-inject": "~1.0.0",
     "escape-html": "~1.0.1",
     "fresh": "~0.2.1",
-    "http-assert": "~1.0.1",
-    "http-errors": "~1.2.0",
-    "koa-compose": "~2.3.0",
-    "koa-is-json": "~1.0.0",
+    "http-assert": "^1.0.1",
+    "http-errors": "^1.2.0",
+    "koa-compose": "^2.3.0",
+    "koa-is-json": "^1.0.0",
     "media-typer": "~0.3.0",
-    "mime-types": "~2.0.0",
-    "on-finished": "~2.1.0",
+    "mime-types": "^2.0.0",
+    "on-finished": "^2.1.0",
     "only": "0.0.2",
-    "parseurl": "~1.3.0",
-    "statuses": "~1.1.0",
-    "type-is": "~1.5.0",
-    "vary": "~1.0.0"
+    "parseurl": "^1.3.0",
+    "statuses": "^1.1.0",
+    "type-is": "^1.5.0",
+    "vary": "^1.0.0"
   },
   "devDependencies": {
     "istanbul-harmony": "~0.3.0",