diff --git a/examples/truffle/package.json b/examples/truffle/package.json
index c1d2858..436d99f 100644
--- a/examples/truffle/package.json
+++ b/examples/truffle/package.json
@@ -23,7 +23,7 @@
   "homepage": "https://github.com/gnosis/ethcontract-rs",
   "devDependencies": {
     "@gnosis.pm/util-contracts": "^3.0.1",
-    "@openzeppelin/contracts": "4.3.2",
+    "@openzeppelin/contracts": "4.7.3",
     "@truffle/hdwallet-provider": "^1.4.3",
     "truffle": "^5.4.6",
     "truffle-plugin-verify": "^0.5.11"
diff --git a/examples/truffle/yarn.lock b/examples/truffle/yarn.lock
index 029b0ff..4af7b73 100644
--- a/examples/truffle/yarn.lock
+++ b/examples/truffle/yarn.lock
@@ -1273,10 +1273,10 @@
     "@nodelib/fs.scandir" "2.1.4"
     fastq "^1.6.0"
 
-"@openzeppelin/contracts@4.3.2":
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.3.2.tgz#ff80affd6d352dbe1bbc5b4e1833c41afd6283b6"
-  integrity sha512-AybF1cesONZStg5kWf6ao9OlqTZuPqddvprc0ky7lrUVOjXeKpmQ2Y9FK+6ygxasb+4aic4O5pneFBfwVsRRRg==
+"@openzeppelin/contracts@4.7.3":
+  version "4.7.3"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.7.3.tgz#939534757a81f8d69cc854c7692805684ff3111e"
+  integrity sha512-dGRS0agJzu8ybo44pCIf3xBaPQN/65AIXNgK8+4gzKd5kbvlqyxryUYVLJv7fK98Seyd2hDZzVEHSWAh0Bt1Yw==
 
 "@protobufjs/aspromise@^1.1.1", "@protobufjs/aspromise@^1.1.2":
   version "1.1.2"