diff --git a/.github/workflows/Backend-CD-Prod-A.yml b/.github/workflows/Backend-CD-Prod-A.yml
index 1e43ca0b..6e0ff3bb 100644
--- a/.github/workflows/Backend-CD-Prod-A.yml
+++ b/.github/workflows/Backend-CD-Prod-A.yml
@@ -33,6 +33,8 @@ jobs:
           echo "No container named 'server' to remove."
           fi
           
+          sudo docker system prune -f
+          
           docker pull ${{ secrets.DOCKER_SERVER_IMAGE }}
           
           docker run -d -p 80:8080 --name server \
diff --git a/.github/workflows/Backend-CD-Prod-B.yml b/.github/workflows/Backend-CD-Prod-B.yml
index 24e924fb..9265fe79 100644
--- a/.github/workflows/Backend-CD-Prod-B.yml
+++ b/.github/workflows/Backend-CD-Prod-B.yml
@@ -16,6 +16,7 @@ jobs:
 
       - name: Port forwarding begin
         run: |
+          sudo sysctl -w net.ipv4.ip_forward=1
           sudo iptables -t nat -I PREROUTING 1 -p tcp --dport 80 -j DNAT --to-destination ${{ secrets.BE_PROD_A_PRIVATE_IP }}:80
           sudo iptables -t nat -I POSTROUTING 1 -p tcp --dport 80 -j SNAT --to-source ${{ secrets.BE_PROD_B_PRIVATE_IP }}
           sudo iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
@@ -32,6 +33,8 @@ jobs:
           echo "No container named 'server' to remove."
           fi
           
+          sudo docker system prune -f
+          
           docker pull ${{ secrets.DOCKER_SERVER_IMAGE }}
           
           docker run -d -p 80:8080 --name server \