diff --git a/package.json b/package.json
index b3a8d82..519b7e5 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
   "dependencies": {
     "@opengsn/contracts": "2.2.2",
     "@opengsn/provider": "2.2.2",
-    "@openzeppelin/contracts": "4.5.0",
+    "@openzeppelin/contracts": "4.7.1",
     "truffle-hdwallet-provider": "^1.0.17"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 21e9ec5..6402043 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1361,10 +1361,10 @@
     ethereumjs-util "^6.2.1"
     nedb-async "^0.1.3"
 
-"@openzeppelin/contracts@4.5.0":
-  version "4.5.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.5.0.tgz#3fd75d57de172b3743cdfc1206883f56430409cc"
-  integrity sha512-fdkzKPYMjrRiPK6K4y64e6GzULR7R7RwxSigHS8DDp7aWDeoReqsQI+cxHV1UuhAqX69L1lAaWDxenfP+xiqzA==
+"@openzeppelin/contracts@4.7.1":
+  version "4.7.1"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.7.1.tgz#33d0a857b76b18d313e6bb6ed28cdaf367e90cfe"
+  integrity sha512-UXmAjKARsXORHlHZu5GCD7ZbRKm6nU8UHnbuT/QJJa2JEOEcbvV/X8w/sUk62Sl9VZuuljM1akrZLyAtzUgsxw==
 
 "@openzeppelin/contracts@^3.4.0-solc-0.7":
   version "3.4.1"