diff --git a/system/nixos/postgresql.nix b/system/nixos/postgresql.nix
index 6bece3c..18962c9 100644
--- a/system/nixos/postgresql.nix
+++ b/system/nixos/postgresql.nix
@@ -14,7 +14,7 @@
     };
 
     authentication = ''
-      host all all 100.66.42.98/32 md5
+      host all all 100.64.10.3/32 md5
       host all all 10.88.0.0/16 md5
     '';
   };