diff --git a/sdk_relay/.conf.docker b/sdk_relay/.conf.docker
index 59847f85..b62ccbfc 100644
--- a/sdk_relay/.conf.docker
+++ b/sdk_relay/.conf.docker
@@ -2,13 +2,13 @@
 # Services connectés via réseau Docker
 
 # Bitcoin Core RPC (utilise le nom d'hôte Docker et le cookie)
-core_url=http://172.19.0.3:18443
+core_url=http://bitcoin:18443
 core_wallet=relay_wallet
 ws_url=0.0.0.0:8090
 wallet_name=relay_wallet.json
 network=signet
 blindbit_url=http://blindbit:8000
-zmq_url=tcp://172.19.0.3:29000
+zmq_url=tcp://bitcoin:29000
 data_dir=.4nk
 cookie_path=/home/bitcoin/.4nk/bitcoin.cookie