diff --git a/package-lock.json b/package-lock.json
index 43c53ab..3d54eac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
                 "@semantic-release/npm": "^7.0.10",
                 "@semantic-release/release-notes-generator": "^9.0.2",
                 "@types/chai": "^4.2.15",
-                "@types/mocha": "^8.2.1",
+                "@types/mocha": "^9.1.1",
                 "@types/node": "^14.14.35",
                 "@typescript-eslint/eslint-plugin": "^4.18.0",
                 "@typescript-eslint/parser": "^4.18.0",
@@ -741,9 +741,9 @@
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         },
         "node_modules/@types/mocha": {
-            "version": "8.2.1",
-            "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-8.2.1.tgz",
-            "integrity": "sha512-NysN+bNqj6E0Hv4CTGWSlPzMW6vTKjDpOteycDkV4IWBsO+PU48JonrPzV9ODjiI2XrjmA05KInLgF5ivZ/YGQ=="
+            "version": "9.1.1",
+            "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-9.1.1.tgz",
+            "integrity": "sha512-Z61JK7DKDtdKTWwLeElSEBcWGRLY8g95ic5FoQqI9CMx0ns/Ghep3B4DfcEimiKMvtamNVULVNKEsiwV3aQmXw=="
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         "node_modules/@types/node": {
             "version": "14.14.35",
@@ -10538,9 +10538,9 @@
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         "@types/mocha": {
-            "version": "8.2.1",
-            "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-8.2.1.tgz",
-            "integrity": "sha512-NysN+bNqj6E0Hv4CTGWSlPzMW6vTKjDpOteycDkV4IWBsO+PU48JonrPzV9ODjiI2XrjmA05KInLgF5ivZ/YGQ=="
+            "version": "9.1.1",
+            "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-9.1.1.tgz",
+            "integrity": "sha512-Z61JK7DKDtdKTWwLeElSEBcWGRLY8g95ic5FoQqI9CMx0ns/Ghep3B4DfcEimiKMvtamNVULVNKEsiwV3aQmXw=="
         },
         "@types/node": {
             "version": "14.14.35",
diff --git a/package.json b/package.json
index e8fd1a3..f3aaf52 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
         "@semantic-release/npm": "^7.0.10",
         "@semantic-release/release-notes-generator": "^9.0.2",
         "@types/chai": "^4.2.15",
-        "@types/mocha": "^8.2.1",
+        "@types/mocha": "^9.1.1",
         "@types/node": "^14.14.35",
         "@typescript-eslint/eslint-plugin": "^4.18.0",
         "@typescript-eslint/parser": "^4.18.0",