diff --git a/docker/docker-compose.regtest.yml b/docker/docker-compose.regtest.yml
index 915ce4f..477082e 100644
--- a/docker/docker-compose.regtest.yml
+++ b/docker/docker-compose.regtest.yml
@@ -55,7 +55,7 @@ services:
       - 'host.docker.internal:host-gateway'
     ports:
       - '1776:1776'
-      - '1777:1777'  # Withdraw extension HTTP API
+      - '1777:1777' # Withdraw extension HTTP API
     volumes:
       - lightning-pub-data:/root/lightning_pub
       # Override Dockerfile's anonymous /app/data volume with named volume
@@ -102,7 +102,7 @@ services:
           sleep $${MINE_INTERVAL}
         done
     environment:
-      - MINE_INTERVAL=${MINE_INTERVAL:-120}
+      - MINE_INTERVAL=${MINE_INTERVAL:-30}
     volumes:
       - bitcoin-data:/root/.bitcoin
     restart: unless-stopped