diff --git a/package.json b/package.json
index 2e7b01adc..0457cf016 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
 	},
 	"dependencies": {
 		"@devprotocol/i-s-tokens": "2.0.1",
-		"@openzeppelin/contracts": "2.5.1"
+		"@openzeppelin/contracts": "4.7.2"
 	},
 	"directories": {
 		"doc": "docs",
diff --git a/yarn.lock b/yarn.lock
index 6b1cfeca1..c12079df9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1396,10 +1396,10 @@
     "@nodelib/fs.scandir" "2.1.3"
     fastq "^1.6.0"
 
-"@openzeppelin/contracts@2.5.1":
-  version "2.5.1"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-2.5.1.tgz#c76e3fc57aa224da3718ec351812a4251289db31"
-  integrity sha512-qIy6tLx8rtybEsIOAlrM4J/85s2q2nPkDqj/Rx46VakBZ0LwtFhXIVub96LXHczQX0vaqmAueDqNPXtbSXSaYQ==
+"@openzeppelin/contracts@4.7.2":
+  version "4.7.2"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.7.2.tgz#7587416fe2d35abf574193515b8971bfe9f64bc7"
+  integrity sha512-4n/JL9izql8303mPqPdubuna/DWEMbmOzWYUWyCPhjhiEr2w3nQrjE7vZz1fBF+wzzP6dZbIcsgqACk53c9FGA==
 
 "@protobufjs/aspromise@^1.1.1", "@protobufjs/aspromise@^1.1.2":
   version "1.1.2"