diff --git a/.env b/.env
index e8b154c8..222554ad 100644
--- a/.env
+++ b/.env
@@ -4,7 +4,7 @@ VITE_APP_FAUCET="https://cardchain.crowdcontrol.network/faucet/claimTokens"
 
 VITE_APP_FAUCET_SITEKEY="ea68532a-a9e6-4f99-9361-db90a3071b72"
 VITE_APP_ADDRESS_PREFIX=cc
-VITE_APP_CHAIN_ID="cardtestnet-4"
+VITE_APP_CHAIN_ID="cardtestnet-5"
 VITE_APP_CHAIN_NAME="Cardchain"
 VITE_APP_CARDIMG_MAXKB=500
 VITE_APP_CARDIMG_SIZE_X=840
diff --git a/.env.development b/.env.development
index ce806150..abf872a8 100644
--- a/.env.development
+++ b/.env.development
@@ -4,7 +4,7 @@
 
 VITE_APP_FAUCET_SITEKEY="ea68532a-a9e6-4f99-9361-db90a3071b72"
 VITE_APP_ADDRESS_PREFIX=cc
-VITE_APP_CHAIN_ID="cardtestnet-4"
+VITE_APP_CHAIN_ID="cardtestnet-5"
 VITE_APP_CHAIN_NAME="Cardchain"
 VITE_APP_CARDIMG_MAXKB=500
 VITE_APP_CARDIMG_SIZE_X=840