diff --git a/supplier/.env.hetzner.example b/supplier/.env.hetzner.example
index b04e15f..1c94f88 100644
--- a/supplier/.env.hetzner.example
+++ b/supplier/.env.hetzner.example
@@ -34,7 +34,7 @@ SUPPLIER_PKH=PASTE_28_BYTE_HEX_HERE
 SUPPLIER_PUB_KEY_HEX=PASTE_32_BYTE_HEX_HERE
 
 # ─── Chain plumbing (mainnet) ─────────────────────────────────────────────
-OGMIOS_URL=wss://ogmios.vector.mainnet.apexfusion.org
+OGMIOS_URL=https://ogmios.vector.mainnet.apexfusion.org
 NETWORK_ID=1
 VECTOR_ZERO_TIME_MS=1756485600000