diff --git a/README.md b/README.md
index c3c4df1..ec0cd99 100644
--- a/README.md
+++ b/README.md
@@ -45,3 +45,5 @@ The following addresses have been submitted by external contributors and have no
 | RSK Testnet   | [0x9e469e1fc7fb4c5d17897b68eaf1afc9df39f103](https://explorer.testnet.rsk.co/address/0x9e469e1fc7fb4c5d17897b68eaf1afc9df39f103) |
 | BSC Mainnet   | [0x41263cba59eb80dc200f3e2544eda4ed6a90e76c](https://bscscan.com/address/0x41263cba59eb80dc200f3e2544eda4ed6a90e76c) |
 | BSC Testnet   | [0xae11C5B5f29A6a25e955F0CB8ddCc416f522AF5C](https://testnet.bscscan.com/address/0xae11c5b5f29a6a25e955f0cb8ddcc416f522af5c) |
+| Astar         | [0x7D6046156df81EF335E7e765d3bc714960B73207](https://blockscout.com/astar/address/0x7D6046156df81EF335E7e765d3bc714960B73207) |
+| Shiden        | [0xB6E580BF400d8DEb17dacDD67734d399367e7f94](https://blockscout.com/shiden/address/0xB6E580BF400d8DEb17dacDD67734d399367e7f94) |