diff --git a/package.json b/package.json
index 5d2a3ceb..471660a8 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "dependencies": {},
   "devDependencies": {
     "@plusnew/driver-dom": "^1.3.2",
-    "@types/jest": "^26.0.19",
+    "@types/jest": "^26.0.21",
     "@typescript-eslint/eslint-plugin": "^4.14.1",
     "@typescript-eslint/parser": "^4.14.1",
     "eslint": "^7.18.0",
diff --git a/yarn.lock b/yarn.lock
index ba748969..32c4a594 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -564,10 +564,10 @@
   dependencies:
     "@types/istanbul-lib-report" "*"
 
-"@types/jest@26.x", "@types/jest@^26.0.19":
-  version "26.0.20"
-  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-26.0.20.tgz#cd2f2702ecf69e86b586e1f5223a60e454056307"
-  integrity sha512-9zi2Y+5USJRxd0FsahERhBwlcvFh6D2GLQnY2FH2BzK8J9s9omvNHIbvABwIluXa0fD8XVKMLTO0aOEuUfACAA==
+"@types/jest@26.x", "@types/jest@^26.0.21":
+  version "26.0.21"
+  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-26.0.21.tgz#3a73c2731e7e4f0fbaea56ce7ff8c79cf812bd24"
+  integrity sha512-ab9TyM/69yg7eew9eOwKMUmvIZAKEGZYlq/dhe5/0IMUd/QLJv5ldRMdddSn+u22N13FP3s5jYyktxuBwY0kDA==
   dependencies:
     jest-diff "^26.0.0"
     pretty-format "^26.0.0"