diff --git a/docs/EVM/first-contract/network-family.md b/docs/EVM/first-contract/network-family.md
index d6beb00d214..74c1afcf534 100644
--- a/docs/EVM/first-contract/network-family.md
+++ b/docs/EVM/first-contract/network-family.md
@@ -8,8 +8,7 @@ Before starting the development, it's important to understand Astar/Shiden Netwo
 
 ## Astar and Shiden
 
-Astar is the network that aims to be the parachain of Polkadot. Shiden is the sister network of Astar which is the parachain of Kusama. Basically, Astar and Shiden share the same code base. The biggest difference is the economic impact. As there is a huge difference in economic value between KSM and DOT, Astar and Shiden will have the same relationship. However, as of writing this tutorial (October 2021), Polkadot parachain is not available. At the current development stage, we can only use Shiden.
-Please note that Shiden has its real economic value. So you need to pay in SDN, the native token of Shiden, when you execute transactions. You can buy SDN on crypto exchanges.
+Astar is the network that aims to be the parachain of Polkadot. Shiden is the sister network of Astar which is the parachain of Kusama. Basically, Astar and Shiden share the same code base. The biggest difference is the economic impact. As there is a huge difference in economic value between KSM and DOT, Astar and Shiden will have the same relationship. Astar has won Polkadot parachain slot on December 17, 2021 and is already available. Please note that Shiden has its real economic value. So you need to pay in SDN, the native token of Shiden, when you execute transactions. You can buy SDN on crypto exchanges.
 
 ## Shibuya
 
@@ -21,4 +20,4 @@ We, of course, offer a local network to allow you to check your smart contract r
 
 :::info
 If you want to know the network details, please check out [this page](../../quickstart/endpoints.md).
-:::
\ No newline at end of file
+:::