diff --git a/README.md b/README.md
index 94c1fd8..77dbde2 100644
--- a/README.md
+++ b/README.md
@@ -177,8 +177,9 @@ The "classic" Satoshi-blockchain is like a git repo with a single master branch
 
 **Bitcoin** is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses **peer-to-peer** technology to **operate with no central authority**: managing transactions and issuing money are carried out collectively by the network. 
 
--   [BitCoin white paper](https://bitcoin.org/bitcoin.pdf) / [Chinese version](BitCoin/white%20paper.md)
+-   [BitCoin white paper: A Peer-to-Peer Electronic Cash System](https://bitcoin.org/bitcoin.pdf) / [Chinese version](BitCoin/white%20paper.md)
 -   [Mastering BitCoin](https://github.com/bitcoinbook/bitcoinbook) / [Chinese version](http://book.8btc.com/books/6/masterbitcoin2cn/_book/) / [pdf download](http://book.8btc.com/master_bitcoin?export=pdf)
+-   [Bitcoin Improvement Proposals](https://github.com/bitcoin/bips/)
 -   [More](./BitCoin/awesome.md)
 
 ### [Ethereum](https://github.com/ethereum)