diff --git a/package.json b/package.json
index eb29737..a6f3d39 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
   },
   "homepage": "https://github.com/truffle-box/drizzle-box#readme",
   "dependencies": {
-    "@openzeppelin/contracts": "^2.4.0",
+    "@openzeppelin/contracts": "^3.4.1",
     "truffle": "^5.1.10",
     "@truffle/hdwallet-provider": "^1.0.29"
   }
diff --git a/yarn.lock b/yarn.lock
index b91bad9..1d080fb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -45,10 +45,10 @@
     lodash "^4.17.19"
     to-fast-properties "^2.0.0"
 
-"@openzeppelin/contracts@^2.4.0":
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-2.5.0.tgz#e327a98ba1d26b7756ff62885a0aa0967a375449"
-  integrity sha512-t3jm8FrhL9tkkJTofkznTqo/XXdHi21w5yXwalEnaMOp22ZwZ0f/mmKdlgMMLPFa6bSVHbY88mKESwJT/7m5Lg==
+"@openzeppelin/contracts@^3.4.1":
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-3.4.1.tgz#03c891fec7f93be0ae44ed74e57a122a38732ce7"
+  integrity sha512-cUriqMauq1ylzP2TxePNdPqkwI7Le3Annh4K9rrpvKfSBB/bdW+Iu1ihBaTIABTAAJ85LmKL5SSPPL9ry8d1gQ==
 
 "@sindresorhus/is@^0.14.0":
   version "0.14.0"