Using old versions of 3rd-party libraries in the build process can introduce vulnerabilities to the protocol code.
In lib/openzeppelin-contracts/package.json:
Older versions of OpenZeppelin contracts might not have fixes for known security vulnerabilities.
Older versions might contain features or functionality that have been deprecated in recent versions.
Newer versions often come with new features, optimizations, and improvements that are not available in older versions.
Manual review
Review the latest stable version of the OpenZeppelin contracts (https://github.com/OpenZeppelin/openzeppelin-contracts/releases) and upgrade.
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