diff --git a/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll b/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll
index 04a7766..d081385 100644
Binary files a/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll and b/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll differ
diff --git a/src/Unity/Assets/Scripts/Managers/ScenarioManager.cs b/src/Unity/Assets/Scripts/Managers/ScenarioManager.cs
index ea3bc4c..60367ef 100644
--- a/src/Unity/Assets/Scripts/Managers/ScenarioManager.cs
+++ b/src/Unity/Assets/Scripts/Managers/ScenarioManager.cs
@@ -49,7 +49,7 @@ namespace CounterDrone.Unity
         public void DeleteScenario(string id) => _service.DeleteScenario(id);
         public Scenario UpdateScenario(Scenario s) => _service.UpdateScenario(s);
         public ScenarioConfig GetDetail(string id) => _service.GetScenarioDetail(id);
-        public PagedResult<Scenario> Search(string kw, string? from, string? to, int page, int size)
+        public PagedResult<Scenario> Search(string kw, string from, string to, int page, int size)
             => _service.SearchScenarios(kw, from, to, page, size);
 
         public void SaveScene(string scenarioId, CombatScene s) => _service.SaveScene(scenarioId, s);
diff --git a/unity_plugins/CounterDrone.Core.dll b/unity_plugins/CounterDrone.Core.dll
index 04a7766..d081385 100644
Binary files a/unity_plugins/CounterDrone.Core.dll and b/unity_plugins/CounterDrone.Core.dll differ