diff --git a/package.json b/package.json
index 06cc0734..80cc5e19 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "elliptic": "^6.5.4"
   },
   "devDependencies": {
-    "@types/mocha": "^7.0.1",
+    "@types/mocha": "^8.2.1",
     "@types/node": "^14.0.1",
     "@typescript-eslint/eslint-plugin": "^2.3.3",
     "@typescript-eslint/parser": "^2.27.0",
diff --git a/yarn.lock b/yarn.lock
index b009c479..d3205e1e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -277,10 +277,10 @@
   resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.168.tgz#fe24632e79b7ade3f132891afff86caa5e5ce008"
   integrity sha512-oVfRvqHV/V6D1yifJbVRU3TMp8OT6o6BG+U9MkwuJ3U8/CsDHvalRpsxBqivn71ztOFZBTfJMvETbqHiaNSj7Q==
 
-"@types/mocha@^7.0.1":
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-7.0.2.tgz#b17f16cf933597e10d6d78eae3251e692ce8b0ce"
-  integrity sha512-ZvO2tAcjmMi8V/5Z3JsyofMe3hasRcaw88cto5etSVMwVQfeivGAlEYmaQgceUSVYFofVjT+ioHsATjdWcFt1w==
+"@types/mocha@^8.2.1":
+  version "8.2.1"
+  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-8.2.1.tgz#f3f3ae4590c5386fc7c543aae9b78d4cf30ffee9"
+  integrity sha512-NysN+bNqj6E0Hv4CTGWSlPzMW6vTKjDpOteycDkV4IWBsO+PU48JonrPzV9ODjiI2XrjmA05KInLgF5ivZ/YGQ==
 
 "@types/node@*", "@types/node@^14.0.1":
   version "14.14.34"