diff --git a/UnityMcpBridge/Editor/Helpers/ServerInstaller.cs b/UnityMcpBridge/Editor/Helpers/ServerInstaller.cs
index 0d8b162..129929d 100644
--- a/UnityMcpBridge/Editor/Helpers/ServerInstaller.cs
+++ b/UnityMcpBridge/Editor/Helpers/ServerInstaller.cs
@@ -39,7 +39,9 @@ namespace UnityMcpBridge.Editor.Helpers
                         "src",
                         "pyproject.toml"
                     );
-                    string installedVersion = ParseVersionFromPyproject(pyprojectPath);
+                    string installedVersion = ParseVersionFromPyproject(
+                        File.ReadAllText(pyprojectPath)
+                    );
                     string latestVersion = GetLatestVersion();
 
                     if (IsNewerVersion(latestVersion, installedVersion))