diff --git a/package.json b/package.json
index d982f0c..293d16e 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
   },
   "devDependencies": {
     "@skatejs/ssr": "0.19.0",
-    "@skatejs/val": "0.3.1",
+    "@skatejs/val": "0.4.0",
     "jest": "20.0.4",
     "nwb": "0.16.3",
     "webpack-node-externals": "1.6.0"
diff --git a/yarn.lock b/yarn.lock
index ed02052..529ef26 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -26,9 +26,9 @@
     undom "^0.3.3"
     yargs "^9.0.1"
 
-"@skatejs/val@0.3.1":
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/@skatejs/val/-/val-0.3.1.tgz#1e043fdcd22ac3d1deab69ef7432314f38ce9f98"
+"@skatejs/val@0.4.0":
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/@skatejs/val/-/val-0.4.0.tgz#fc28fe75d6559625ccb79ae93c9ffcad8cc08a94"
 
 "@types/node@^6.0.46":
   version "6.0.78"