diff --git a/solidity/package-lock.json b/solidity/package-lock.json
index 18acdecc0..4f3d771cc 100644
--- a/solidity/package-lock.json
+++ b/solidity/package-lock.json
@@ -22,7 +22,7 @@
         "@ethersproject/bignumber": "^5.0.8",
         "@nomiclabs/hardhat-ethers": "^2.1.0",
         "@nomiclabs/hardhat-waffle": "^2.0.3",
-        "@openzeppelin/contracts": "4.8.3",
+        "@openzeppelin/contracts": "4.9.3",
         "@typechain/ethers-v5": "^5.0.0",
         "@types/chai": "^4.2.13",
         "@types/command-line-args": "^5.0.0",
@@ -2572,9 +2572,9 @@
       }
     },
     "node_modules/@openzeppelin/contracts": {
-      "version": "4.8.3",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.8.3.tgz",
-      "integrity": "sha512-bQHV8R9Me8IaJoJ2vPG4rXcL7seB7YVuskr4f+f5RyOStSZetwzkWtoqDMl5erkBJy0lDRUnIR2WIkPiC0GJlg==",
+      "version": "4.9.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.3.tgz",
+      "integrity": "sha512-He3LieZ1pP2TNt5JbkPA4PNT9WC3gOTOlDcFGJW4Le4QKqwmiNJCRt44APfxMxvq7OugU/cqYuPcSBzOw38DAg==",
       "dev": true
     },
     "node_modules/@protobufjs/aspromise": {
@@ -34124,9 +34124,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "4.8.3",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.8.3.tgz",
-      "integrity": "sha512-bQHV8R9Me8IaJoJ2vPG4rXcL7seB7YVuskr4f+f5RyOStSZetwzkWtoqDMl5erkBJy0lDRUnIR2WIkPiC0GJlg==",
+      "version": "4.9.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.3.tgz",
+      "integrity": "sha512-He3LieZ1pP2TNt5JbkPA4PNT9WC3gOTOlDcFGJW4Le4QKqwmiNJCRt44APfxMxvq7OugU/cqYuPcSBzOw38DAg==",
       "dev": true
     },
     "@protobufjs/aspromise": {
diff --git a/solidity/package.json b/solidity/package.json
index 800f43e35..606e9a589 100644
--- a/solidity/package.json
+++ b/solidity/package.json
@@ -20,7 +20,7 @@
     "@ethersproject/bignumber": "^5.0.8",
     "@nomiclabs/hardhat-ethers": "^2.1.0",
     "@nomiclabs/hardhat-waffle": "^2.0.3",
-    "@openzeppelin/contracts": "4.8.3",
+    "@openzeppelin/contracts": "4.9.3",
     "@typechain/ethers-v5": "^5.0.0",
     "@types/chai": "^4.2.13",
     "@types/command-line-args": "^5.0.0",
diff --git a/solidity/yarn.lock b/solidity/yarn.lock
index 23bde005a..ed10a446e 100644
--- a/solidity/yarn.lock
+++ b/solidity/yarn.lock
@@ -1128,10 +1128,10 @@
     "@types/sinon-chai" "^3.2.3"
     "@types/web3" "1.0.19"
 
-"@openzeppelin/contracts@4.8.3":
-  version "4.8.3"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.8.3.tgz#cbef3146bfc570849405f59cba18235da95a252a"
-  integrity sha512-bQHV8R9Me8IaJoJ2vPG4rXcL7seB7YVuskr4f+f5RyOStSZetwzkWtoqDMl5erkBJy0lDRUnIR2WIkPiC0GJlg==
+"@openzeppelin/contracts@4.9.3":
+  version "4.9.3"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.9.3.tgz#00d7a8cf35a475b160b3f0293a6403c511099364"
+  integrity sha512-He3LieZ1pP2TNt5JbkPA4PNT9WC3gOTOlDcFGJW4Le4QKqwmiNJCRt44APfxMxvq7OugU/cqYuPcSBzOw38DAg==
 
 "@protobufjs/aspromise@^1.1.1", "@protobufjs/aspromise@^1.1.2":
   version "1.1.2"