diff --git a/src/core/configuration/DefaultConfig.ts b/src/core/configuration/DefaultConfig.ts
index 909519785..2864b383d 100644
--- a/src/core/configuration/DefaultConfig.ts
+++ b/src/core/configuration/DefaultConfig.ts
@@ -379,7 +379,7 @@ export class DefaultConfig implements Config {
             UnitType.Port,
             UnitType.Factory,
           ),
-          constructionDuration: this.instantBuild() ? 0 : 2 * 10,
+          constructionDuration: this.instantBuild() ? 0 : 5 * 10,
           upgradable: true,
         };
         break;