diff --git a/package-lock.json b/package-lock.json
index 8f70c1e..9b53db6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
         "eslint-config-prettier": "^8.3.0",
         "eslint-plugin-import": "^2.22.1",
         "esm": "^3.2.25",
-        "mocha": "^8.3.2",
+        "mocha": "^8.4.0",
         "npm-run-all": "^4.1.5",
         "prettier": "2.2.1",
         "ts-loader": "^9.1.2",
@@ -2788,9 +2788,9 @@
       "dev": true
     },
     "node_modules/mocha": {
-      "version": "8.3.2",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-8.3.2.tgz",
-      "integrity": "sha512-UdmISwr/5w+uXLPKspgoV7/RXZwKRTiTjJ2/AC5ZiEztIoOYdfKb19+9jNmEInzx5pBsCyJQzarAxqIGBNYJhg==",
+      "version": "8.4.0",
+      "resolved": "https://registry.npmjs.org/mocha/-/mocha-8.4.0.tgz",
+      "integrity": "sha512-hJaO0mwDXmZS4ghXsvPVriOhsxQ7ofcpQdm8dE+jISUOKopitvnXFQmpRR7jd2K6VBG6E26gU3IAbXXGIbu4sQ==",
       "dev": true,
       "dependencies": {
         "@ungap/promise-all-settled": "1.1.2",
@@ -6880,9 +6880,9 @@
       "dev": true
     },
     "mocha": {
-      "version": "8.3.2",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-8.3.2.tgz",
-      "integrity": "sha512-UdmISwr/5w+uXLPKspgoV7/RXZwKRTiTjJ2/AC5ZiEztIoOYdfKb19+9jNmEInzx5pBsCyJQzarAxqIGBNYJhg==",
+      "version": "8.4.0",
+      "resolved": "https://registry.npmjs.org/mocha/-/mocha-8.4.0.tgz",
+      "integrity": "sha512-hJaO0mwDXmZS4ghXsvPVriOhsxQ7ofcpQdm8dE+jISUOKopitvnXFQmpRR7jd2K6VBG6E26gU3IAbXXGIbu4sQ==",
       "dev": true,
       "requires": {
         "@ungap/promise-all-settled": "1.1.2",
diff --git a/package.json b/package.json
index 7c4695d..c3de6ca 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-import": "^2.22.1",
     "esm": "^3.2.25",
-    "mocha": "^8.3.2",
+    "mocha": "^8.4.0",
     "npm-run-all": "^4.1.5",
     "prettier": "2.2.1",
     "ts-loader": "^9.1.2",