diff --git a/pubspec.lock b/pubspec.lock
index 4a9e203cc..1ffce5e0a 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -36,7 +36,7 @@ packages:
   guinness:
     description: guinness
     source: hosted
-    version: "0.1.5"
+    version: "0.1.13"
   html5lib:
     description: html5lib
     source: hosted
diff --git a/pubspec.yaml b/pubspec.yaml
index d32395bb9..dbd81378b 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -27,7 +27,7 @@ dependencies:
   web_components: '>=0.3.3 <0.4.0'
 dev_dependencies:
   benchmark_harness: '>=1.0.0'
-  guinness: '>=0.1.3 <0.2.0'
+  guinness: '>=0.1.13 <0.2.0'
   mock: '>=0.10.0 <0.12.0'
   protractor: '0.0.5'
   unittest: '>=0.10.1 <0.12.0'