diff --git a/package.json b/package.json
index 157d3ca0..b908ab1e 100644
--- a/package.json
+++ b/package.json
@@ -101,7 +101,7 @@
     "npm-run-all": "4.1.5",
     "nyc": "13.3.0",
     "primer-tooltips": "2.0.0",
-    "sinon": "7.2.7",
+    "sinon": "7.3.0",
     "socket.io-client": "2.2.0",
     "stylelint": "9.10.1",
     "stylelint-config-standard": "18.2.0",
diff --git a/yarn.lock b/yarn.lock
index edf4a22e..1a03e9dd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -712,7 +712,7 @@
   resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.14.0.tgz#9fb3a3cf3132328151f353de4632e01e52102bea"
   integrity sha512-9NET910DNaIPngYnLLPeg+Ogzqsi9uM4mSboU5y6p8S5DzMTVEsJZrawi+BoDNUVBa2DhJqQYUFvMDfgU062LQ==
 
-"@sinonjs/commons@^1", "@sinonjs/commons@^1.3.1":
+"@sinonjs/commons@^1":
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/@sinonjs/commons/-/commons-1.3.1.tgz#ba4ae5fa908f7d8b96b0ec8df0665aca2d8695a4"
   integrity sha512-rgmZk5CrBGAMATk0HlHOFvo8V44/r+On6cKS80tqid0Eljd+fFBWBOXZp9H2/EB3faxdNdzXTx6QZIKLkbJ7mA==
@@ -726,6 +726,13 @@
   dependencies:
     type-detect "4.0.8"
 
+"@sinonjs/commons@^1.4.0":
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/@sinonjs/commons/-/commons-1.4.0.tgz#7b3ec2d96af481d7a0321252e7b1c94724ec5a78"
+  integrity sha512-9jHK3YF/8HtJ9wCAbG+j8cD0i0+ATS9A7gXFqS36TblLPNy6rEEc+SB0imo91eCboGaBYGV/MT1/br/J+EE7Tw==
+  dependencies:
+    type-detect "4.0.8"
+
 "@sinonjs/formatio@^3.1.0":
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/@sinonjs/formatio/-/formatio-3.1.0.tgz#6ac9d1eb1821984d84c4996726e45d1646d8cce5"
@@ -750,7 +757,7 @@
     array-from "^2.1.1"
     lodash "^4.17.11"
 
-"@sinonjs/samsam@^3.1.0", "@sinonjs/samsam@^3.2.0":
+"@sinonjs/samsam@^3.1.0":
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/@sinonjs/samsam/-/samsam-3.2.0.tgz#58c62b5f1f42e46d039d073d0ae2753da676bf0c"
   integrity sha512-j5F1rScewLtx6pbTK0UAjA3jJj4RYiSKOix53YWv+Jzy/AZ69qHxUpU8fwVLjyKbEEud9QrLpv6Ggs7WqTimYw==
@@ -759,6 +766,15 @@
     array-from "^2.1.1"
     lodash "^4.17.11"
 
+"@sinonjs/samsam@^3.3.0":
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/@sinonjs/samsam/-/samsam-3.3.0.tgz#9557ea89cd39dbc94ffbd093c8085281cac87416"
+  integrity sha512-beHeJM/RRAaLLsMJhsCvHK31rIqZuobfPLa/80yGH5hnD8PV1hyh9xJBJNFfNmO7yWqm+zomijHsXpI6iTQJfQ==
+  dependencies:
+    "@sinonjs/commons" "^1.0.2"
+    array-from "^2.1.1"
+    lodash "^4.17.11"
+
 "@sinonjs/text-encoding@^0.7.1":
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz#8da5c6530915653f3a1f38fd5f101d8c3f8079c5"
@@ -7709,14 +7725,14 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
   integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
 
-sinon@7.2.7:
-  version "7.2.7"
-  resolved "https://registry.yarnpkg.com/sinon/-/sinon-7.2.7.tgz#ee90f83ce87d9a6bac42cf32a3103d8c8b1bfb68"
-  integrity sha512-rlrre9F80pIQr3M36gOdoCEWzFAMDgHYD8+tocqOw+Zw9OZ8F84a80Ds69eZfcjnzDqqG88ulFld0oin/6rG/g==
+sinon@7.3.0:
+  version "7.3.0"
+  resolved "https://registry.yarnpkg.com/sinon/-/sinon-7.3.0.tgz#fd409432bf2ef8ee6a302cf47ca1b0c95fd4de38"
+  integrity sha512-0pYvgRv46fODzT/PByqb79MVNpyxsxf38WEiXTABOF8RfIMcIARfZ+1ORuxwAmHkreZ/jST3UDBdKCRhUy/e1A==
   dependencies:
-    "@sinonjs/commons" "^1.3.1"
+    "@sinonjs/commons" "^1.4.0"
     "@sinonjs/formatio" "^3.2.1"
-    "@sinonjs/samsam" "^3.2.0"
+    "@sinonjs/samsam" "^3.3.0"
     diff "^3.5.0"
     lolex "^3.1.0"
     nise "^1.4.10"