diff --git a/package.json b/package.json
index bd29c52b..96839cf6 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "typecheck": "tsc"
   },
   "dependencies": {
-    "@types/chai": "^4.3.16",
+    "@types/chai": "^4.3.20",
     "@types/chai-as-promised": "^7.1.8",
     "@types/chai-datetime": "^0.0.39",
     "@types/dirty-chai": "^2.0.4",
diff --git a/yarn.lock b/yarn.lock
index d1668da9..284dcde9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1776,10 +1776,10 @@
   resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.21.tgz#9f35a5643129df132cf3b5c1ec64046ea1af0650"
   integrity sha512-yd+9qKmJxm496BOV9CMNaey8TWsikaZOwMRwPHQIjcOJM9oV+fi9ZMNw3JsVnbEEbo2gRTDnGEBv8pjyn67hNg==
 
-"@types/chai@^4.3.16":
-  version "4.3.16"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.16.tgz#b1572967f0b8b60bf3f87fe1d854a5604ea70c82"
-  integrity sha512-PatH4iOdyh3MyWtmHVFXLWCCIhUbopaltqddG9BzB+gMIzee2MJrvd+jouii9Z3wzQJruGWAm7WOMjgfG8hQlQ==
+"@types/chai@^4.3.20":
+  version "4.3.20"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.20.tgz#cb291577ed342ca92600430841a00329ba05cecc"
+  integrity sha512-/pC9HAB5I/xMlc5FP77qjCnI16ChlJfW0tGa0IUcFn38VJrTV6DeZ60NU5KZBtaOZqjdpwTWohz5HU1RrhiYxQ==
 
 "@types/color-name@^1.1.1":
   version "1.1.1"