diff --git a/Tunny.Core/Settings/TSettings.cs b/Tunny.Core/Settings/TSettings.cs
index b07b0bcb..714d9e02 100644
--- a/Tunny.Core/Settings/TSettings.cs
+++ b/Tunny.Core/Settings/TSettings.cs
@@ -12,7 +12,7 @@ namespace Tunny.Core.Settings
 {
     public class TSettings
     {
-        public Version Version { get; set; } = TEnvVariables.Version;
+        public string Version { get; set; } = TEnvVariables.Version.ToString();
         public Optimize Optimize { get; set; } = new Optimize();
         public Result Result { get; set; } = new Result();
         public string StudyName { get; set; } = string.Empty;
diff --git a/Tunny/Component/Optimizer/BoneFishComponent.cs b/Tunny/Component/Optimizer/BoneFishComponent.cs
index 44e3e881..e9beecba 100644
--- a/Tunny/Component/Optimizer/BoneFishComponent.cs
+++ b/Tunny/Component/Optimizer/BoneFishComponent.cs
@@ -64,7 +64,7 @@ protected override void SolveInstance(IGH_DataAccess DA)
             CheckArtifactsInput(Params.Input[3].Sources.Select(ghParam => ghParam.InstanceGuid));
 
             var settings = TSettings.LoadFromJson();
-            Version tunnyAssembleVersion = TEnvVariables.Version;
+            string tunnyAssembleVersion = TEnvVariables.Version.ToString();
             if (settings.CheckPythonLibraries || settings.Version != tunnyAssembleVersion)
             {
                 AddRuntimeMessage(GH_RuntimeMessageLevel.Error, "The optimization environment has not been built; launch the UI of the Tunny component once and install Python.");
diff --git a/Tunny/UI/OptimizationWindow.cs b/Tunny/UI/OptimizationWindow.cs
index df4408b4..90784d35 100644
--- a/Tunny/UI/OptimizationWindow.cs
+++ b/Tunny/UI/OptimizationWindow.cs
@@ -43,7 +43,7 @@ public OptimizationWindow(FishingComponent component)
         private void RunPythonInstaller()
         {
             TLog.MethodStart();
-            Version tunnyAssembleVersion = TEnvVariables.Version;
+            string tunnyAssembleVersion = TEnvVariables.Version.ToString();
             if (_settings.CheckPythonLibraries || _settings.Version != tunnyAssembleVersion)
             {
                 TLog.Info("Run Python installer");