diff --git a/package-lock.json b/package-lock.json
index be99928..f4cc5fe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
         "postinstall": "^0.8.0"
       },
       "devDependencies": {
-        "@openzeppelin/contracts": "^4.8.2",
+        "@openzeppelin/contracts": "^4.9.1",
         "@truffle/hdwallet-provider": "^2.1.9",
         "@typechain/ethers-v5": "^10.2.0",
         "@typechain/truffle-v5": "^8.0.2",
@@ -2108,9 +2108,9 @@
       ]
     },
     "node_modules/@openzeppelin/contracts": {
-      "version": "4.8.2",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.8.2.tgz",
-      "integrity": "sha512-kEUOgPQszC0fSYWpbh2kT94ltOJwj1qfT2DWo+zVttmGmf97JZ99LspePNaeeaLhCImaHVeBbjaQFZQn7+Zc5g==",
+      "version": "4.9.1",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.1.tgz",
+      "integrity": "sha512-aLDTLu/If1qYIFW5g4ZibuQaUsFGWQPBq1mZKp/txaebUnGHDmmiBhRLY1tDNedN0m+fJtKZ1zAODS9Yk+V6uA==",
       "dev": true
     },
     "node_modules/@protobufjs/aspromise": {
@@ -17126,9 +17126,9 @@
       "dev": true
     },
     "@openzeppelin/contracts": {
-      "version": "4.8.2",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.8.2.tgz",
-      "integrity": "sha512-kEUOgPQszC0fSYWpbh2kT94ltOJwj1qfT2DWo+zVttmGmf97JZ99LspePNaeeaLhCImaHVeBbjaQFZQn7+Zc5g==",
+      "version": "4.9.1",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.1.tgz",
+      "integrity": "sha512-aLDTLu/If1qYIFW5g4ZibuQaUsFGWQPBq1mZKp/txaebUnGHDmmiBhRLY1tDNedN0m+fJtKZ1zAODS9Yk+V6uA==",
       "dev": true
     },
     "@protobufjs/aspromise": {
diff --git a/package.json b/package.json
index e99ab4a..c3b57d3 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "typechain": "npm run typechain:all"
   },
   "devDependencies": {
-    "@openzeppelin/contracts": "^4.8.2",
+    "@openzeppelin/contracts": "^4.9.1",
     "@truffle/hdwallet-provider": "^2.1.9",
     "@typechain/ethers-v5": "^10.2.0",
     "@typechain/truffle-v5": "^8.0.2",