diff --git a/.github/workflows/nginx.yml b/.github/workflows/nginx.yml
index a661a14600..1588e2cfb6 100644
--- a/.github/workflows/nginx.yml
+++ b/.github/workflows/nginx.yml
@@ -96,7 +96,7 @@ jobs:
             namespace: metallb-system
           spec:
             addresses:
-            - 172.17.255.200-172.17.255.250
+            - 172.18.255.200-172.18.255.250
           ---
           apiVersion: metallb.io/v1beta1
           kind: L2Advertisement