diff --git a/package.json b/package.json
index 649d9b6..0105a53 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "karma-mocha": "^1.3.0",
     "karma-phantomjs-launcher": "^1.0.2",
     "karma-phantomjs-shim": "^1.5.0",
-    "karma-sinon-chai": "^1.2.4",
+    "karma-sinon-chai": "^1.3.3",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-spec-reporter": "0.0.31",
     "karma-webpack": "^2.0.6",
diff --git a/yarn.lock b/yarn.lock
index d18cb04..0f46a68 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3620,9 +3620,9 @@ karma-phantomjs-shim@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/karma-phantomjs-shim/-/karma-phantomjs-shim-1.5.0.tgz#e8db65883480f0dbd184cc961d39c64511742200"
 
-karma-sinon-chai@^1.2.4:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/karma-sinon-chai/-/karma-sinon-chai-1.3.2.tgz#ea4d97b16433e64813aaddddded7f7bb4338215e"
+karma-sinon-chai@^1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/karma-sinon-chai/-/karma-sinon-chai-1.3.3.tgz#a597e5b4a1369fe7b3d7d76c09ed2061a38e747f"
   dependencies:
     lolex "^1.6.0"