diff --git a/package-lock.json b/package-lock.json
index ce02c112..0d53becf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
         "@metamask/eth-sig-util": "^5.0.2",
         "@nomicfoundation/hardhat-toolbox": "^2.0.0",
         "@nomiclabs/hardhat-ethers": "^2.2.1",
-        "@openzeppelin/contracts": "^3.4.0",
+        "@openzeppelin/contracts": "^4.9.6",
         "@rsksmart/rif-relay-client": "github:rsksmart/rif-relay-client",
         "@rsksmart/rif-relay-contracts": "github:rsksmart/rif-relay-contracts",
         "@rsksmart/rif-relay-server": "github:rsksmart/rif-relay-server",
@@ -2085,9 +2085,9 @@
       }
     },
     "node_modules/@openzeppelin/contracts": {
-      "version": "3.4.2",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.4.2.tgz",
-      "integrity": "sha512-z0zMCjyhhp4y7XKAcDAi3Vgms4T2PstwBdahiO0+9NaGICQKjynK3wduSRplTgk4LXmoO1yfDGO5RbjKYxtuxA=="
+      "version": "4.9.6",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.6.tgz",
+      "integrity": "sha512-xSmezSupL+y9VkHZJGDoCBpmnB2ogM13ccaYDWqJTfS3dbuHkgjuwDFUmaFauBCboQMGB/S5UqUl2y54X99BmA=="
     },
     "node_modules/@rsksmart/rif-relay-client": {
       "version": "2.2.0",
@@ -2140,6 +2140,11 @@
         "node": ">=12.0.0"
       }
     },
+    "node_modules/@rsksmart/rif-relay-contracts/node_modules/@openzeppelin/contracts": {
+      "version": "3.4.2",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.4.2.tgz",
+      "integrity": "sha512-z0zMCjyhhp4y7XKAcDAi3Vgms4T2PstwBdahiO0+9NaGICQKjynK3wduSRplTgk4LXmoO1yfDGO5RbjKYxtuxA=="
+    },
     "node_modules/@rsksmart/rif-relay-contracts/node_modules/@sinonjs/commons": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-2.0.0.tgz",
@@ -13379,9 +13384,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "3.4.2",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.4.2.tgz",
-      "integrity": "sha512-z0zMCjyhhp4y7XKAcDAi3Vgms4T2PstwBdahiO0+9NaGICQKjynK3wduSRplTgk4LXmoO1yfDGO5RbjKYxtuxA=="
+      "version": "4.9.6",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.6.tgz",
+      "integrity": "sha512-xSmezSupL+y9VkHZJGDoCBpmnB2ogM13ccaYDWqJTfS3dbuHkgjuwDFUmaFauBCboQMGB/S5UqUl2y54X99BmA=="
     },
     "@rsksmart/rif-relay-client": {
       "version": "git+ssh://git@github.com/rsksmart/rif-relay-client.git#7a464c6ecbf8699a45900b861667b2c855cf1787",
@@ -13421,6 +13426,11 @@
             "tweetnacl-util": "^0.15.1"
           }
         },
+        "@openzeppelin/contracts": {
+          "version": "3.4.2",
+          "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.4.2.tgz",
+          "integrity": "sha512-z0zMCjyhhp4y7XKAcDAi3Vgms4T2PstwBdahiO0+9NaGICQKjynK3wduSRplTgk4LXmoO1yfDGO5RbjKYxtuxA=="
+        },
         "@sinonjs/commons": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-2.0.0.tgz",
diff --git a/package.json b/package.json
index 16129fe7..87d56ce2 100644
--- a/package.json
+++ b/package.json
@@ -88,7 +88,7 @@
     "@metamask/eth-sig-util": "^5.0.2",
     "@nomicfoundation/hardhat-toolbox": "^2.0.0",
     "@nomiclabs/hardhat-ethers": "^2.2.1",
-    "@openzeppelin/contracts": "^3.4.0",
+    "@openzeppelin/contracts": "^4.9.6",
     "@rsksmart/rif-relay-client": "github:rsksmart/rif-relay-client",
     "@rsksmart/rif-relay-contracts": "github:rsksmart/rif-relay-contracts",
     "@rsksmart/rif-relay-server": "github:rsksmart/rif-relay-server",