diff --git a/package-lock.json b/package-lock.json
index 52535d6..bbbb917 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,7 +6,7 @@
     "": {
       "name": "hardhat-project",
       "dependencies": {
-        "@openzeppelin/contracts": "^4.4.2",
+        "@openzeppelin/contracts": "^4.9.1",
         "hardhat": "^2.6.8"
       },
       "devDependencies": {
@@ -1340,9 +1340,9 @@
       }
     },
     "node_modules/@openzeppelin/contracts": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.5.0.tgz",
-      "integrity": "sha512-fdkzKPYMjrRiPK6K4y64e6GzULR7R7RwxSigHS8DDp7aWDeoReqsQI+cxHV1UuhAqX69L1lAaWDxenfP+xiqzA=="
+      "version": "4.9.1",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.1.tgz",
+      "integrity": "sha512-aLDTLu/If1qYIFW5g4ZibuQaUsFGWQPBq1mZKp/txaebUnGHDmmiBhRLY1tDNedN0m+fJtKZ1zAODS9Yk+V6uA=="
     },
     "node_modules/@resolver-engine/core": {
       "version": "0.3.3",
@@ -16490,9 +16490,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.5.0.tgz",
-      "integrity": "sha512-fdkzKPYMjrRiPK6K4y64e6GzULR7R7RwxSigHS8DDp7aWDeoReqsQI+cxHV1UuhAqX69L1lAaWDxenfP+xiqzA=="
+      "version": "4.9.1",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.1.tgz",
+      "integrity": "sha512-aLDTLu/If1qYIFW5g4ZibuQaUsFGWQPBq1mZKp/txaebUnGHDmmiBhRLY1tDNedN0m+fJtKZ1zAODS9Yk+V6uA=="
     },
     "@resolver-engine/core": {
       "version": "0.3.3",
diff --git a/package.json b/package.json
index 14f3b46..6e393ab 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "hardhat-project",
   "dependencies": {
-    "@openzeppelin/contracts": "^4.4.2",
+    "@openzeppelin/contracts": "^4.9.1",
     "hardhat": "^2.6.8"
   },
   "devDependencies": {