diff --git a/package.json b/package.json
index cf737f39..774fd566 100644
--- a/package.json
+++ b/package.json
@@ -94,7 +94,7 @@
     "mousetrap": "1.6.2",
     "npm-run-all": "4.1.3",
     "nyc": "12.0.2",
-    "sinon": "5.0.10",
+    "sinon": "5.1.1",
     "socket.io-client": "2.1.1",
     "stylelint": "9.2.1",
     "stylelint-config-standard": "18.2.0",
diff --git a/yarn.lock b/yarn.lock
index 5d79b13e..89b03da4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6450,9 +6450,9 @@ signal-exit@^3.0.0, signal-exit@^3.0.1, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
 
-sinon@5.0.10:
-  version "5.0.10"
-  resolved "https://registry.yarnpkg.com/sinon/-/sinon-5.0.10.tgz#a282b36a7475664c9f98719108e5546907129023"
+sinon@5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/sinon/-/sinon-5.1.1.tgz#19c59810ffb733ea6e76a28b94a71fc4c2f523b8"
   dependencies:
     "@sinonjs/formatio" "^2.0.0"
     diff "^3.5.0"