diff --git a/package.json b/package.json
index 5175eb8..9c7703d 100644
--- a/package.json
+++ b/package.json
@@ -48,6 +48,6 @@
     "test": "test"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "^3.0.1"
+    "@openzeppelin/contracts": "^4.4.2"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 8f48012..bb08686 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -140,10 +140,10 @@
     safe-buffer "^5.1.1"
     util.promisify "^1.0.0"
 
-"@openzeppelin/contracts@^3.0.1":
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-3.0.1.tgz#2f327f77d16b43f14674086b2b634bda38cb0838"
-  integrity sha512-uSrD7hZ0ViuHGqHZbeHawZBi/uy7aBiNramXAt2dFFuSuoU4u9insS3V3zdVfOnYSPreUo636xSOuQIFN4//HA==
+"@openzeppelin/contracts@^4.4.2":
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.4.2.tgz#4e889c9c66e736f7de189a53f8ba5b8d789425c2"
+  integrity sha512-NyJV7sJgoGYqbtNUWgzzOGW4T6rR19FmX1IJgXGdapGPWsuMelGJn9h03nos0iqfforCbCB0iYIR0MtIuIFLLw==
 
 "@resolver-engine/core@^0.3.3":
   version "0.3.3"