diff --git a/SEM7/BT/package.json b/SEM7/BT/package.json
index dc8cdaf..ba942c3 100644
--- a/SEM7/BT/package.json
+++ b/SEM7/BT/package.json
@@ -8,7 +8,7 @@
   "license": "MIT",
   "private": false,
   "dependencies": {
-    "@openzeppelin/contracts": "^5.4.0",
+    "@openzeppelin/contracts": "^5.5.0",
     "hardhat": "^3.0.1"
   },
   "devDependencies": {
diff --git a/SEM7/BT/yarn.lock b/SEM7/BT/yarn.lock
index 4375803..feffae5 100644
--- a/SEM7/BT/yarn.lock
+++ b/SEM7/BT/yarn.lock
@@ -829,10 +829,10 @@
     "@nomicfoundation/solidity-analyzer-linux-x64-musl" "0.1.2"
     "@nomicfoundation/solidity-analyzer-win32-x64-msvc" "0.1.2"
 
-"@openzeppelin/contracts@^5.4.0":
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-5.4.0.tgz#177594bdb2d86c71f5d1052fe40cb4edb95fb20f"
-  integrity sha512-eCYgWnLg6WO+X52I16TZt8uEjbtdkgLC0SUX/xnAksjjrQI4Xfn4iBRoI5j55dmlOhDv1Y7BoR3cU7e3WWhC6A==
+"@openzeppelin/contracts@^5.5.0":
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-5.5.0.tgz#24e8a2f9598de484dcb223512af656edf52bc0e8"
+  integrity sha512-R8hq4zmKKWP2c7OxeRgAcjZwvF5W0Qq2OIX7degrtdM52Q9xYr4MLJdUAVPKGUewNJ1qo+M6YiZLLnNUnjP/gg==
 
 "@scure/base@~1.1.0", "@scure/base@~1.1.6":
   version "1.1.7"