diff --git a/main.tf b/main.tf
index 0f8f2b48..9ee24777 100644
--- a/main.tf
+++ b/main.tf
@@ -441,7 +441,7 @@ locals {
     }
   }
 
-  api_internal_cidr = "10.0.0.0/8"
+  api_internal_cidr = "10.0.0.0/16"
   api_domain        = "signals-demo-test.demo"
   api_alert_email   = "alerts@example.com"
 }