diff --git a/package.json b/package.json
index b50e300..8d754b6 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "devDependencies": {
     "@commitlint/cli": "12.1.1",
     "@commitlint/config-conventional": "11.0.0",
-    "@types/chai": "4.2.14",
+    "@types/chai": "4.2.18",
     "@types/mocha": "8.0.1",
     "chai": "4.2.0",
     "chai-exclude": "2.0.2",
diff --git a/yarn.lock b/yarn.lock
index 0c85d12..c959259 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1150,10 +1150,10 @@
   resolved "https://registry.yarnpkg.com/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz#8da5c6530915653f3a1f38fd5f101d8c3f8079c5"
   integrity sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==
 
-"@types/chai@4.2.14":
-  version "4.2.14"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.14.tgz#44d2dd0b5de6185089375d976b4ec5caf6861193"
-  integrity sha512-G+ITQPXkwTrslfG5L/BksmbLUA0M1iybEsmCWPqzSxsRRhJZimBKJkoMi8fr/CPygPTj4zO5pJH7I2/cm9M7SQ==
+"@types/chai@4.2.18":
+  version "4.2.18"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.18.tgz#0c8e298dbff8205e2266606c1ea5fbdba29b46e4"
+  integrity sha512-rS27+EkB/RE1Iz3u0XtVL5q36MGDWbgYe7zWiodyKNUnthxY0rukK5V36eiUCtCisB7NN8zKYH6DO2M37qxFEQ==
 
 "@types/color-name@^1.1.1":
   version "1.1.1"