diff --git a/package.json b/package.json
index f8768df..716c606 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "devDependencies": {
         "@nomiclabs/hardhat-waffle": "^2.0.1",
         "@typechain/ethers-v5": "^6.0.5",
-        "@types/chai": "^4.2.12",
+        "@types/chai": "^4.3.3",
         "@types/chai-almost": "^1.0.1",
         "@types/chai-as-promised": "^7.1.3",
         "@types/minimist": "^1.2.0",
diff --git a/yarn.lock b/yarn.lock
index 64e60ba..04a3324 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1121,10 +1121,10 @@
   dependencies:
     "@types/chai" "*"
 
-"@types/chai@*", "@types/chai@^4.2.12":
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.0.tgz#23509ebc1fa32f1b4d50d6a66c4032d5b8eaabdc"
-  integrity sha512-/ceqdqeRraGolFTcfoXNiqjyQhZzbINDngeoAq9GoHa8PPK1yNzTaxWjA6BFWp5Ua9JpXEMSS4s5i9tS0hOJtw==
+"@types/chai@*", "@types/chai@^4.3.3":
+  version "4.3.3"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.3.tgz#3c90752792660c4b562ad73b3fbd68bf3bc7ae07"
+  integrity sha512-hC7OMnszpxhZPduX+m+nrx+uFoLkWOMiR4oa/AZF3MuSETYTZmFfJAHqZEM8MVlvfG7BEUcgvtwoCTxBp6hm3g==
 
 "@types/glob@^7.1.1":
   version "7.2.0"