diff --git a/src/core/configuration/DefaultConfig.ts b/src/core/configuration/DefaultConfig.ts
index 4661e594c..fe51b043c 100644
--- a/src/core/configuration/DefaultConfig.ts
+++ b/src/core/configuration/DefaultConfig.ts
@@ -275,7 +275,7 @@ export class DefaultConfig implements Config {
     return 10000 + 150 * Math.pow(dist, 1.1);
   }
   tradeShipSpawnRate(numberOfPorts: number): number {
-    return Math.round(10 * Math.pow(numberOfPorts, 0.6));
+    return Math.min(50, Math.round(10 * Math.pow(numberOfPorts, 0.6)));
   }
 
   unitInfo(type: UnitType): UnitInfo {