diff --git a/package.json b/package.json
index f8768df..afaf656 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": "^4.3.4",
         "@types/chai-almost": "^1.0.1",
         "@types/chai-as-promised": "^7.1.3",
         "@types/minimist": "^1.2.0",
@@ -46,7 +46,7 @@
         "@typescript-eslint/eslint-plugin": "^5.19.0",
         "@typescript-eslint/parser": "^5.19.0",
         "bignumber.js": "^9.0.0",
-        "chai": "^4.2.0",
+        "chai": "^4.3.7",
         "chai-almost": "^1.0.1",
         "chai-as-promised": "^7.1.1",
         "codecov": "^3.7.1",
diff --git a/yarn.lock b/yarn.lock
index 64e60ba..295f354 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@^4.3.4":
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.4.tgz#e913e8175db8307d78b4e8fa690408ba6b65dee4"
+  integrity sha512-KnRanxnpfpjUTqTCXslZSEdLfXExwgNxYPdiO2WGUj8+HDjFi8R3k5RVKPeSCzLjCcshCAtVO2QBbVuAV4kTnw==
 
 "@types/glob@^7.1.1":
   version "7.2.0"
@@ -2696,14 +2696,14 @@ chai-as-promised@^7.1.1:
   dependencies:
     check-error "^1.0.2"
 
-chai@^4.2.0:
-  version "4.3.6"
-  resolved "https://registry.yarnpkg.com/chai/-/chai-4.3.6.tgz#ffe4ba2d9fa9d6680cc0b370adae709ec9011e9c"
-  integrity sha512-bbcp3YfHCUzMOvKqsztczerVgBKSsEijCySNlHHbX3VG1nskvqjz5Rfso1gGwD6w6oOV3eI60pKuMOV5MV7p3Q==
+chai@^4.3.7:
+  version "4.3.7"
+  resolved "https://registry.yarnpkg.com/chai/-/chai-4.3.7.tgz#ec63f6df01829088e8bf55fca839bcd464a8ec51"
+  integrity sha512-HLnAzZ2iupm25PlN0xFreAlBA5zaBSv3og0DdeGA4Ar6h6rJ3A0rolRUKJhSF2V10GZKDgWF/VmAEsNWjCRB+A==
   dependencies:
     assertion-error "^1.1.0"
     check-error "^1.0.2"
-    deep-eql "^3.0.1"
+    deep-eql "^4.1.2"
     get-func-name "^2.0.0"
     loupe "^2.3.1"
     pathval "^1.1.1"
@@ -3351,10 +3351,10 @@ deep-eql@^2.0.2:
   dependencies:
     type-detect "^3.0.0"
 
-deep-eql@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-3.0.1.tgz#dfc9404400ad1c8fe023e7da1df1c147c4b444df"
-  integrity sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==
+deep-eql@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-4.1.2.tgz#270ceb902f87724077e6f6449aed81463f42fc1c"
+  integrity sha512-gT18+YW4CcW/DBNTwAmqTtkJh7f9qqScu2qFVlx7kCoeY9tlBu9cUcr7+I+Z/noG8INehS3xQgLpTtd/QUTn4w==
   dependencies:
     type-detect "^4.0.0"