diff --git a/package.json b/package.json
index 7749fea..f5687a3 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "test": "test"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "^3.1.0",
+    "@openzeppelin/contracts": "^4.4.2",
     "@openzeppelin/test-helpers": "^0.5.6",
     "chai": "^4.2.0",
     "solhint": "^2.1.2",
diff --git a/yarn.lock b/yarn.lock
index 8347e8f..6cfa890 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -154,10 +154,10 @@
     fs-extra "^8.1.0"
     try-require "^1.2.1"
 
-"@openzeppelin/contracts@^3.1.0":
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-3.1.0.tgz#bcea457ef89069fbe5a617f50b25b6a8272895d5"
-  integrity sha512-dVXDnUKxrAKLzPdCRkz+N8qsVkK1XxJ6kk3zuI6zaQmcKxN7CkizoDP7lXxcs/Mi2I0mxceTRjJBqlzFffLJrQ==
+"@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==
 
 "@openzeppelin/test-helpers@^0.5.6":
   version "0.5.6"