diff --git a/package-lock.json b/package-lock.json
index 5f58de3..69d144d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2330,9 +2330,9 @@
       }
     },
     "@types/chai": {
-      "version": "4.2.5",
-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.5.tgz",
-      "integrity": "sha512-YvbLiIc0DbbhiANrfVObdkLEHJksQZVq0Uvfg550SRAKVYaEJy+V70j65BVe2WNp6E3HtKsUczeijHFCjba3og==",
+      "version": "4.2.21",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.21.tgz",
+      "integrity": "sha512-yd+9qKmJxm496BOV9CMNaey8TWsikaZOwMRwPHQIjcOJM9oV+fi9ZMNw3JsVnbEEbo2gRTDnGEBv8pjyn67hNg==",
       "dev": true
     },
     "@types/cheerio": {
diff --git a/package.json b/package.json
index 63de3ec..df9eb91 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
   "license": "ISC",
   "devDependencies": {
     "@cypress/webpack-preprocessor": "4.1.1",
-    "@types/chai": "4.2.5",
+    "@types/chai": "4.2.21",
     "@types/create-subscription": "16.4.2",
     "@types/enzyme": "3.10.3",
     "@types/enzyme-adapter-react-16": "1.0.5",