diff --git a/common/network-defaults/src/mainnet.rs b/common/network-defaults/src/mainnet.rs
index b6723c1a4a..ffbbe8d265 100644
--- a/common/network-defaults/src/mainnet.rs
+++ b/common/network-defaults/src/mainnet.rs
@@ -17,8 +17,8 @@ pub const MIXNET_CONTRACT_ADDRESS: &str =
     "n17srjznxl9dvzdkpwpw24gg668wc73val88a6m5ajg6ankwvz9wtst0cznr";
 pub const VESTING_CONTRACT_ADDRESS: &str =
     "n1nc5tatafv6eyq7llkr2gv50ff9e22mnf70qgjlv737ktmt4eswrq73f2nw";
-
-pub const ECASH_CONTRACT_ADDRESS: &str = "";
+pub const ECASH_CONTRACT_ADDRESS: &str = 
+"n1r7s6aksyc6pqardx88k3rkgfagwvj4z4zum9mmz2sfk3zm2mha0sd4dnun";
 pub const GROUP_CONTRACT_ADDRESS: &str =
     "n1e2zq4886zzewpvpucmlw8v9p7zv692f6yck4zjzxh699dkcmlrfqk2knsr";
 pub const MULTISIG_CONTRACT_ADDRESS: &str =
diff --git a/envs/mainnet.env b/envs/mainnet.env
index 17f546028c..e40e54a471 100644
--- a/envs/mainnet.env
+++ b/envs/mainnet.env
@@ -15,6 +15,7 @@ DENOMS_EXPONENT=6
 MIXNET_CONTRACT_ADDRESS=n17srjznxl9dvzdkpwpw24gg668wc73val88a6m5ajg6ankwvz9wtst0cznr
 VESTING_CONTRACT_ADDRESS=n1nc5tatafv6eyq7llkr2gv50ff9e22mnf70qgjlv737ktmt4eswrq73f2nw
 GROUP_CONTRACT_ADDRESS=n1e2zq4886zzewpvpucmlw8v9p7zv692f6yck4zjzxh699dkcmlrfqk2knsr
+ECASH_CONTRACT_ADDRESS=n1r7s6aksyc6pqardx88k3rkgfagwvj4z4zum9mmz2sfk3zm2mha0sd4dnun
 MULTISIG_CONTRACT_ADDRESS=n1txayqfz5g9qww3rlflpg025xd26m9payz96u54x4fe3s2ktz39xqk67gzx
 COCONUT_DKG_CONTRACT_ADDRESS=n19604yflqggs9mk2z26mqygq43q2kr3n932egxx630svywd5mpxjsztfpvx