diff --git a/.env.example b/.env.example
index 459ac8c..1190242 100644
--- a/.env.example
+++ b/.env.example
@@ -1,6 +1,6 @@
 NET_ID=42
 RPC_URL=https://kovan.infura.io
-# ORACLE_RPC_URL should always point to mainnet
+# ORACLE_RPC_URL should always point to the mainnet
 ORACLE_RPC_URL=https://mainnet.infura.io
 REDIS_URL=redis://127.0.0.1:6379
 
diff --git a/docker-compose.yml b/docker-compose.yml
index ee8508c..4398985 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,6 +9,8 @@ services:
       LETSENCRYPT_HOST: example.duckdns.org
       NET_ID: 42
       RPC_URL: https://kovan.infura.io
+      # ORACLE_RPC_URL should always point to the mainnet
+      ORACLE_RPC_URL: https://mainnet.infura.io
       # without 0x prefix
       PRIVATE_KEY:
       # 2.5 means 2.5%
@@ -26,6 +28,8 @@ services:
       LETSENCRYPT_HOST: example2.duckdns.org
       NET_ID: 1
       RPC_URL: https://mainnet.infura.io
+      # ORACLE_RPC_URL should always point to the mainnet
+      ORACLE_RPC_URL: https://mainnet.infura.io
       # without 0x prefix
       PRIVATE_KEY:
       # 2.5 means 2.5%