diff --git a/util/Seeder/Factories/UserSeeder.cs b/util/Seeder/Factories/UserSeeder.cs
index dd5fc159c0..4fc456981c 100644
--- a/util/Seeder/Factories/UserSeeder.cs
+++ b/util/Seeder/Factories/UserSeeder.cs
@@ -1,4 +1,5 @@
-using Bit.Core.Entities;
+using System.Globalization;
+using Bit.Core.Entities;
 using Bit.Core.Enums;
 using Bit.Core.Utilities;
 using Bit.RustSDK;
@@ -77,7 +78,7 @@ public class UserSeeder(RustSdkService sdkService, IPasswordHasher<Bit.Core.Enti
             { expectedUserData.Email, MangleEmail(expectedUserData.Email) },
             { expectedUserData.Id.ToString(), user.Id.ToString() },
             { expectedUserData.Kdf.ToString(), user.Kdf.ToString() },
-            { expectedUserData.KdfIterations.ToString(), user.KdfIterations.ToString() }
+            { expectedUserData.KdfIterations.ToString(CultureInfo.InvariantCulture), user.KdfIterations.ToString(CultureInfo.InvariantCulture) }
         };
         if (expectedUserData.Key != null)
         {
diff --git a/util/Seeder/MangleId.cs b/util/Seeder/MangleId.cs
index e1be47f4d2..8cc862c28c 100644
--- a/util/Seeder/MangleId.cs
+++ b/util/Seeder/MangleId.cs
@@ -1,4 +1,6 @@
-namespace Bit.Seeder;
+using System.Globalization;
+
+namespace Bit.Seeder;
 
 /// <summary>
 /// Helper for generating unique identifier suffixes to prevent collisions in test data.
@@ -12,7 +14,7 @@ public class MangleId
     public MangleId()
     {
         // Generate a short random string (6 char) to use as the mangle ID
-        Value = Random.Shared.NextInt64().ToString("x").Substring(0, 8);
+        Value = Random.Shared.NextInt64().ToString("x", CultureInfo.InvariantCulture).Substring(0, 8);
     }
 
     public override string ToString() => Value;