diff --git a/packages/core/package.json b/packages/core/package.json
index 3e84e823..e26c5f72 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -19,8 +19,8 @@
   },
   "devDependencies": {
     "@ava/typescript": "^2.0.0",
-    "@openzeppelin/contracts": "^4.4.0",
-    "@openzeppelin/contracts-upgradeable": "^4.4.0",
+    "@openzeppelin/contracts": "4.4.1",
+    "@openzeppelin/contracts-upgradeable": "4.4.1",
     "@types/node": "^10.17.51",
     "@types/rimraf": "^3.0.0",
     "array.prototype.flat": "^1.2.4",
diff --git a/yarn.lock b/yarn.lock
index 5480de0f..a37c4ff9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -313,15 +313,15 @@
     "@nodelib/fs.scandir" "2.1.5"
     fastq "^1.6.0"
 
-"@openzeppelin/contracts-upgradeable@^4.4.0":
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.4.0.tgz#85161d87c840c5bce2b6ed0c727b407e774852ae"
-  integrity sha512-hIEyWJHu7bDTv6ckxOaV+K3+7mVzhjtyvp3QSaz56Rk5PscXtPAbkiNTb3yz6UJCWHPWpxVyULVgZ6RubuFEZg==
-
-"@openzeppelin/contracts@^4.4.0":
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.4.0.tgz#4a1df71f736c31230bbbd634dfb006a756b51e6b"
-  integrity sha512-dlKiZmDvJnGRLHojrDoFZJmsQVeltVeoiRN7RK+cf2FmkhASDEblE0RiaYdxPNsUZa6mRG8393b9bfyp+V5IAw==
+"@openzeppelin/contracts-upgradeable@4.4.1":
+  version "4.4.1"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.4.1.tgz#5d2c0e82cc1f94ee38a27572217ef103d5c3d0ef"
+  integrity sha512-84dUN+TBY42D52BzUc4RHxU4KORs8Ys7dj3nH0WX1QKtlS6rrN45gL+sxaotkPdCqFLVLPyj+kd8GfJ4puxVjA==
+
+"@openzeppelin/contracts@4.4.1":
+  version "4.4.1"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.4.1.tgz#3382db2cd83ab565ed9626765e7da92944b45de8"
+  integrity sha512-o+pHCf/yMLSlV5MkDQEzEQL402i6SoRnktru+0rdSxVEFZcTzzGhZCAtZjUFyKGazMSv1TilzMg+RbED1N8XHQ==
 
 "@polka/url@^1.0.0-next.20":
   version "1.0.0-next.21"