diff --git a/docker-compose.yml b/docker-compose.yml
index 70b626c..bc28d9c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,9 +11,8 @@ services:
       - beacon-chain-data:/data
     restart: unless-stopped
     environment:
-      CHECKPOINT_SYNC_URL: ""
       EXTRA_OPTS: ""
-      FEE_RECIPIENT_ADDRESS: ""
+      FEE_RECIPIENT_ADDRESS: "0x0000000000000000000000000000000000000000"
       VERBOSITY: info
       MIN_SYNC_PEERS: "3"
       MAX_PEERS: "70"
@@ -30,7 +29,7 @@ services:
       LOG_TYPE: INFO
       GRAFFITI: validating_from_DAppNode
       EXTRA_OPTS: ""
-      FEE_RECIPIENT_ADDRESS: ""
+      FEE_RECIPIENT_ADDRESS: "0x0000000000000000000000000000000000000000"
       VERBOSITY: info
 volumes:
   beacon-chain-data: {}
diff --git a/package_variants/hoodi/docker-compose.yml b/package_variants/hoodi/docker-compose.yml
index 7c16ee9..1c826ff 100644
--- a/package_variants/hoodi/docker-compose.yml
+++ b/package_variants/hoodi/docker-compose.yml
@@ -7,10 +7,11 @@ services:
         P2P_TCP_PORT: 14603
         P2P_UDP_PORT: 14603
     ports:
-      - 14603:14603/tcp
+      - 14603:14603
       - 14603:14603/udp
     environment:
       CORSDOMAIN: "*"
+      CHECKPOINT_SYNC_URL: "https://checkpoint-sync-hoodi.dappnode.net"
   validator:
     build:
       args:
diff --git a/package_variants/lukso/docker-compose.yml b/package_variants/lukso/docker-compose.yml
index 19b6e18..1c75f1d 100644
--- a/package_variants/lukso/docker-compose.yml
+++ b/package_variants/lukso/docker-compose.yml
@@ -8,13 +8,14 @@ services:
         P2P_UDP_PORT: 12603
         UPSTREAM_VERSION: v6.0.4
     ports:
-      - 12603:12603/tcp
+      - 12603:12603
       - 12603:12603/udp
     environment:
       CORSDOMAIN: "*"
       MIN_SYNC_PEERS: "1"
       MAX_PEERS: "70"
       SUBSCRIBE_ALL_SUBNETS: "false"
+      CHECKPOINT_SYNC_URL: "https://checkpoint-sync-lukso.dappnode.net"
   validator:
     build:
       args:
diff --git a/package_variants/mainnet/docker-compose.yml b/package_variants/mainnet/docker-compose.yml
index 9e3e813..2dfaae6 100644
--- a/package_variants/mainnet/docker-compose.yml
+++ b/package_variants/mainnet/docker-compose.yml
@@ -7,10 +7,11 @@ services:
         P2P_TCP_PORT: 13103
         P2P_UDP_PORT: 12103
     ports:
-      - 13103:13103/tcp
+      - 13103:13103
       - 12103:12103/udp
     environment:
       CORSDOMAIN: "*"
+      CHECKPOINT_SYNC_URL: "https://checkpoint-sync.dappnode.net"
   validator:
     build:
       args:
diff --git a/package_variants/sepolia/docker-compose.yml b/package_variants/sepolia/docker-compose.yml
index 7d29321..8491bb5 100644
--- a/package_variants/sepolia/docker-compose.yml
+++ b/package_variants/sepolia/docker-compose.yml
@@ -7,10 +7,11 @@ services:
         P2P_TCP_PORT: 19114
         P2P_UDP_PORT: 19114
     ports:
-      - 19114:19114/tcp
+      - 19114:19114
       - 19114:19114/udp
     environment:
       CORSDOMAIN: "*"
+      CHECKPOINT_SYNC_URL: "https://checkpoint-sync-sepolia.dappnode.net"
   validator:
     build:
       args: