diff --git a/package.json b/package.json
index 26914dbc..f329ab79 100644
--- a/package.json
+++ b/package.json
@@ -105,7 +105,7 @@
     "prettier": "1.19.1",
     "pretty-quick": "2.0.1",
     "primer-tooltips": "2.0.0",
-    "sinon": "8.1.0",
+    "sinon": "8.1.1",
     "socket.io-client": "2.3.0",
     "stylelint": "13.0.0",
     "stylelint-config-standard": "19.0.0",
diff --git a/yarn.lock b/yarn.lock
index cd16393e..0711bca6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8248,10 +8248,10 @@ simple-swizzle@^0.2.2:
   dependencies:
     is-arrayish "^0.3.1"
 
-sinon@8.1.0:
-  version "8.1.0"
-  resolved "https://registry.yarnpkg.com/sinon/-/sinon-8.1.0.tgz#30f82371ac6e7d4dccb77fa1525f5ea748c636ff"
-  integrity sha512-6/05TR+8QhEgTbyMWaConm8iPL609Eno7SqToPq63wC/jS/6NMEI4NxqtzlLkk3r/KcZT9xPXQodH0oJ917Hbg==
+sinon@8.1.1:
+  version "8.1.1"
+  resolved "https://registry.yarnpkg.com/sinon/-/sinon-8.1.1.tgz#21fffd5ad0a2d072a8aa7f8a3cf7ed2ced497497"
+  integrity sha512-E+tWr3acRdoe1nXbHMu86SSqA1WGM7Yw3jZRLvlCMnXwTHP8lgFFVn5BnKnF26uc5SfZ3D7pA9sN7S3Y2jG4Ew==
   dependencies:
     "@sinonjs/commons" "^1.7.0"
     "@sinonjs/formatio" "^4.0.1"