diff --git a/ZB.MOM.WW.Auth/Directory.Build.props b/ZB.MOM.WW.Auth/Directory.Build.props
index 5e21819..c48c525 100644
--- a/ZB.MOM.WW.Auth/Directory.Build.props
+++ b/ZB.MOM.WW.Auth/Directory.Build.props
@@ -5,7 +5,7 @@
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <LangVersion>latest</LangVersion>
-    <Version>0.1.1</Version>
+    <Version>0.1.2</Version>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
 
diff --git a/ZB.MOM.WW.Auth/src/ZB.MOM.WW.Auth.ApiKeys/Sqlite/SqliteAuthSchema.cs b/ZB.MOM.WW.Auth/src/ZB.MOM.WW.Auth.ApiKeys/Sqlite/SqliteAuthSchema.cs
index f3afd55..86b87a5 100644
--- a/ZB.MOM.WW.Auth/src/ZB.MOM.WW.Auth.ApiKeys/Sqlite/SqliteAuthSchema.cs
+++ b/ZB.MOM.WW.Auth/src/ZB.MOM.WW.Auth.ApiKeys/Sqlite/SqliteAuthSchema.cs
@@ -5,8 +5,15 @@ namespace ZB.MOM.WW.Auth.ApiKeys.Sqlite;
 /// </summary>
 public static class SqliteAuthSchema
 {
-    /// <summary>The schema version this build creates and supports.</summary>
-    public const int CurrentVersion = 1;
+    /// <summary>
+    /// The schema version this build creates and supports. This is <c>2</c>, not <c>1</c>,
+    /// to match the deployed databases of the donor (MxAccessGateway) this store was
+    /// extracted from: that store reached its final shape via a v1→v2 history and stamps
+    /// <c>version = 2</c> on disk. The final schema has been byte-identical since v1, so a
+    /// single-shot create stamped as 2 interoperates with existing <c>gateway-auth.db</c>
+    /// files (the migrator only refuses an on-disk version <em>newer</em> than this).
+    /// </summary>
+    public const int CurrentVersion = 2;
 
     /// <summary>Name of the single-row table tracking the applied schema version.</summary>
     public const string SchemaVersionTable = "schema_version";
diff --git a/ZB.MOM.WW.Auth/src/ZB.MOM.WW.Auth.ApiKeys/Sqlite/SqliteAuthStoreMigrator.cs b/ZB.MOM.WW.Auth/src/ZB.MOM.WW.Auth.ApiKeys/Sqlite/SqliteAuthStoreMigrator.cs
index 416cad8..8234692 100644
--- a/ZB.MOM.WW.Auth/src/ZB.MOM.WW.Auth.ApiKeys/Sqlite/SqliteAuthStoreMigrator.cs
+++ b/ZB.MOM.WW.Auth/src/ZB.MOM.WW.Auth.ApiKeys/Sqlite/SqliteAuthStoreMigrator.cs
@@ -35,7 +35,7 @@ public sealed class SqliteAuthStoreMigrator(AuthSqliteConnectionFactory connecti
                 $"Auth database schema version {existingVersion} is newer than supported version {SqliteAuthSchema.CurrentVersion}.");
         }
 
-        await ApplyVersionOneAsync(connection, transaction, cancellationToken).ConfigureAwait(false);
+        await ApplySchemaAsync(connection, transaction, cancellationToken).ConfigureAwait(false);
         await WriteSchemaVersionAsync(connection, transaction, cancellationToken).ConfigureAwait(false);
 
         await transaction.CommitAsync(cancellationToken).ConfigureAwait(false);
@@ -78,7 +78,10 @@ public sealed class SqliteAuthStoreMigrator(AuthSqliteConnectionFactory connecti
             : Convert.ToInt32(version, CultureInfo.InvariantCulture);
     }
 
-    private static async Task ApplyVersionOneAsync(
+    // Single-shot create of the final schema (all DDL is CREATE ... IF NOT EXISTS, so it is
+    // idempotent against an already-provisioned database). The applied version is stamped
+    // separately by WriteSchemaVersionAsync.
+    private static async Task ApplySchemaAsync(
         SqliteConnection connection,
         SqliteTransaction transaction,
         CancellationToken cancellationToken)
diff --git a/ZB.MOM.WW.Auth/tests/ZB.MOM.WW.Auth.ApiKeys.Tests/SqliteMigratorTests.cs b/ZB.MOM.WW.Auth/tests/ZB.MOM.WW.Auth.ApiKeys.Tests/SqliteMigratorTests.cs
index c5e08c8..f7870d0 100644
--- a/ZB.MOM.WW.Auth/tests/ZB.MOM.WW.Auth.ApiKeys.Tests/SqliteMigratorTests.cs
+++ b/ZB.MOM.WW.Auth/tests/ZB.MOM.WW.Auth.ApiKeys.Tests/SqliteMigratorTests.cs
@@ -34,6 +34,27 @@ public sealed class SqliteMigratorTests : IDisposable
         Assert.Equal(1, await CountSchemaVersionRowsAsync());
     }
 
+    [Fact]
+    public void CurrentVersion_Is2_ToMatchDonorGatewayDeployedSchema() =>
+        // The store was extracted from MxAccessGateway, whose deployed gateway-auth.db is
+        // stamped version 2. The library must stamp 2 (not reset to 1) so it does not refuse
+        // those existing databases on first boot. Locking this invariant.
+        Assert.Equal(2, SqliteAuthSchema.CurrentVersion);
+
+    [Fact]
+    public async Task MigrateAsync_AgainstExistingVersion2Db_DoesNotThrow_AndStaysAt2()
+    {
+        // The deployed-gateway scenario: a database already provisioned at version 2.
+        var migrator = new SqliteAuthStoreMigrator(Factory);
+        await migrator.MigrateAsync(CancellationToken.None);
+        await SetVersionAsync(2);
+
+        await migrator.MigrateAsync(CancellationToken.None); // must not throw
+
+        Assert.Equal(2, await ReadVersionAsync());
+        Assert.True(await TableExistsAsync(SqliteAuthSchema.ApiKeysTable));
+    }
+
     [Fact]
     public async Task MigrateAsync_FutureSchemaVersion_Throws()
     {