diff --git a/docker-compose.debug.yml b/docker-compose.debug.yml
index 3008f547a..f860d2998 100644
--- a/docker-compose.debug.yml
+++ b/docker-compose.debug.yml
@@ -60,6 +60,46 @@ services:
     networks:
       d-voting:
         ipv4_address: 172.19.44.252
+  dela-worker-3:             # DELA worker node
+    image: dela:latest
+    build:
+      dockerfile: ./Dockerfiles/Dockerfile.dela.debug
+    environment:
+      PROXYKEY: ${PUBLIC_KEY}
+      PROXYPORT: ${PROXYPORT}
+      LLVL: debug
+    volumes:
+      - dela-worker-3-data:/data
+    hostname: dela-worker-3
+    ports:
+      - 127.0.0.1:40002:40000
+    security_opt:
+      - apparmor:unconfined
+    cap_add:
+      - SYS_PTRACE
+    networks:
+      d-voting:
+        ipv4_address: 172.19.44.251
+  dela-worker-4:             # DELA worker node
+    image: dela:latest
+    build:
+      dockerfile: ./Dockerfiles/Dockerfile.dela.debug
+    environment:
+      PROXYKEY: ${PUBLIC_KEY}
+      PROXYPORT: ${PROXYPORT}
+      LLVL: debug
+    volumes:
+      - dela-worker-4-data:/data
+    hostname: dela-worker-4
+    ports:
+      - 127.0.0.1:40002:40000
+    security_opt:
+      - apparmor:unconfined
+    cap_add:
+      - SYS_PTRACE
+    networks:
+      d-voting:
+        ipv4_address: 172.19.44.250
 
   frontend:         # web service frontend
     image: frontend:latest
@@ -121,6 +161,8 @@ volumes:
   dela-worker-0-data:
   dela-worker-1-data:
   dela-worker-2-data:
+  dela-worker-3-data:
+  dela-worker-4-data:
   backend-data:
 
 networks:
diff --git a/docker-compose.yml b/docker-compose.yml
index d5ceeb2d6..91098a2d3 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -42,6 +42,34 @@ services:
     networks:
       d-voting:
         ipv4_address: 172.19.44.252
+  dela-worker-3:             # DELA worker node
+    image: dela:latest
+    build:
+      dockerfile: ./Dockerfiles/Dockerfile.dela
+    environment:
+      PROXYKEY: ${PUBLIC_KEY}
+      PROXYPORT: ${PROXYPORT}
+      LLVL: info
+    volumes:
+      - dela-worker-3-data:/data
+    hostname: dela-worker-3
+    networks:
+      d-voting:
+        ipv4_address: 172.19.44.251
+  dela-worker-4:             # DELA worker node
+    image: dela:latest
+    build:
+      dockerfile: ./Dockerfiles/Dockerfile.dela
+    environment:
+      PROXYKEY: ${PUBLIC_KEY}
+      PROXYPORT: ${PROXYPORT}
+      LLVL: info
+    volumes:
+      - dela-worker-4-data:/data
+    hostname: dela-worker-4
+    networks:
+      d-voting:
+        ipv4_address: 172.19.44.250
 
   frontend:         # web service frontend
     image: frontend:latest
@@ -99,6 +127,8 @@ volumes:
   dela-worker-0-data:
   dela-worker-1-data:
   dela-worker-2-data:
+  dela-worker-3-data:
+  dela-worker-4-data:
   backend-data:
 
 networks:
diff --git a/init_dela.sh b/init_dela.sh
index 1acfd1aa2..a40d93b02 100755
--- a/init_dela.sh
+++ b/init_dela.sh
@@ -4,28 +4,28 @@ MEMBERS="";
 
 
 # share the certificate
-for container in dela-worker-1 dela-worker-2; do
+for container in dela-worker-1 dela-worker-2 dela-worker-3 dela-worker-4; do
   TOKEN_ARGS=$(docker compose exec dela-worker-0 /bin/bash -c 'LLVL=error memcoin --config /data/node minogrpc token');
   docker compose exec "$container" memcoin --config /data/node minogrpc join --address //dela-worker-0:2000 $TOKEN_ARGS;
 done
 
 # create a new chain with the nodes
-for container in dela-worker-0 dela-worker-1 dela-worker-2; do
+for container in dela-worker-0 dela-worker-1 dela-worker-2 dela-worker-3 dela-worker-4; do
   # add node to the chain
   MEMBERS="$MEMBERS --member $(docker compose exec $container /bin/bash -c 'LLVL=error memcoin --config /data/node ordering export')";
 done
 docker compose exec dela-worker-0 memcoin --config /data/node ordering setup $MEMBERS;
 
 # authorize the signer to handle the access contract on each node
-for signer in dela-worker-0 dela-worker-1 dela-worker-2; do
+for signer in dela-worker-0 dela-worker-1 dela-worker-2 dela-worker-3 dela-worker-4; do
   IDENTITY=$(docker compose exec "$signer" crypto bls signer read --path /data/node/private.key --format BASE64_PUBKEY);
-  for node in dela-worker-0 dela-worker-1 dela-worker-2; do
+  for node in dela-worker-0 dela-worker-1 dela-worker-2 dela-worker-3 dela-worker-4; do
     docker compose exec "$node" memcoin --config /data/node access add --identity "$IDENTITY";
   done
 done
 
 # update the access contract
-for container in dela-worker-0 dela-worker-1 dela-worker-2; do
+for container in dela-worker-0 dela-worker-1 dela-worker-2 dela-worker-3 dela-worker-4; do
   IDENTITY=$(docker compose exec "$container" crypto bls signer read --path /data/node/private.key --format BASE64_PUBKEY);
   docker compose exec dela-worker-0 memcoin --config /data/node pool add\
       --key /data/node/private.key\