diff --git a/solidity/README.md b/solidity/README.md
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@@ -32,7 +32,5 @@
 * [Uniswap Oracle Attack Simulator by Euler](https://blog.euler.finance/uniswap-oracle-attack-simulator-42d18adf65af)
    * "Given current concentrated liquidity profile of the ABC/WETH pool, what would it cost the attacker to move a N-minute TWAP of the ABC price to x?" 
 * [Hacking the Blockchain by Immunifi](https://medium.com/immunefi/hacking-the-blockchain-an-ultimate-guide-4f34b33c6e8b)
-* [OpenZeppelin docs](https://docs.openzeppelin.com/)
-* [Solidity docs](https://docs.openzeppelin.com/)
 * [Thinking About Smart Contract Security by Vitalik](https://blog.ethereum.org/2016/06/19/thinking-smart-contract-security/)
 * [Spoof tokens on Ethereum](https://medium.com/etherscan-blog/spoof-tokens-on-ethereum-c2ad882d9cf6)