diff --git a/package.json b/package.json
index 6da5749..899b39e 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "@gnosis.pm/safe-contracts": "^1.3.0",
     "@nomiclabs/hardhat-etherscan": "^3.1.7",
     "@openzeppelin/contracts": "^4.2.0",
-    "@openzeppelin/contracts-upgradeable": "^4.8.3",
+    "@openzeppelin/contracts-upgradeable": "^4.9.3",
     "@thehubbleproject/bls": "^0.5.1",
     "@typechain/hardhat": "^2.3.0",
     "@types/mocha": "^9.0.0",
diff --git a/yarn.lock b/yarn.lock
index d44aaf1..a955416 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -845,10 +845,10 @@
     "@types/sinon-chai" "^3.2.3"
     "@types/web3" "1.0.19"
 
-"@openzeppelin/contracts-upgradeable@^4.8.3":
-  version "4.8.3"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.8.3.tgz#6b076a7b751811b90fe3a172a7faeaa603e13a3f"
-  integrity sha512-SXDRl7HKpl2WDoJpn7CK/M9U4Z8gNXDHHChAKh0Iz+Wew3wu6CmFYBeie3je8V0GSXZAIYYwUktSrnW/kwVPtg==
+"@openzeppelin/contracts-upgradeable@^4.9.3":
+  version "4.9.3"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.9.3.tgz#ff17a80fb945f5102571f8efecb5ce5915cc4811"
+  integrity sha512-jjaHAVRMrE4UuZNfDwjlLGDxTHWIOwTJS2ldnc278a0gevfXfPr8hxKEVBGFBE96kl2G3VHDZhUimw/+G3TG2A==
 
 "@openzeppelin/contracts@^4.2.0":
   version "4.8.0"