diff --git a/Frends.MicrosoftSQL.ExecuteQueryToFile/Frends.MicrosoftSQL.ExecuteQueryToFile.Tests/lib/Helper.cs b/Frends.MicrosoftSQL.ExecuteQueryToFile/Frends.MicrosoftSQL.ExecuteQueryToFile.Tests/lib/Helper.cs
index 80d59f3..1d23a2e 100644
--- a/Frends.MicrosoftSQL.ExecuteQueryToFile/Frends.MicrosoftSQL.ExecuteQueryToFile.Tests/lib/Helper.cs
+++ b/Frends.MicrosoftSQL.ExecuteQueryToFile/Frends.MicrosoftSQL.ExecuteQueryToFile.Tests/lib/Helper.cs
@@ -9,7 +9,7 @@ internal static string GetConnectionString()
     {
         var user = "SA";
         var pwd = "Salakala123!";
-        return $"Server=127.0.0.1,1433;Database=Master;User Id={user};Password={pwd}";
+        return $"Server=127.0.0.1,1433;Database=Master;User Id={user};Password={pwd};TrustServerCertificate=True";
     }
 
     internal static void CreateTestTable(string connString, string tableName)