diff --git a/src/PrayerTracker.MigrateV9/PrayerTracker.MigrateV9.fsproj b/src/PrayerTracker.MigrateV9/PrayerTracker.MigrateV9.fsproj
index 760088f..01efbd8 100644
--- a/src/PrayerTracker.MigrateV9/PrayerTracker.MigrateV9.fsproj
+++ b/src/PrayerTracker.MigrateV9/PrayerTracker.MigrateV9.fsproj
@@ -15,6 +15,7 @@
 
   <ItemGroup>
     <PackageReference Include="BitBadger.Documents.Postgres" Version="4.0.1" />
+    <PackageReference Include="Npgsql.NodaTime" Version="9.0.2" />
   </ItemGroup>
 
 </Project>
diff --git a/src/PrayerTracker.MigrateV9/Program.fs b/src/PrayerTracker.MigrateV9/Program.fs
index c2d2bc8..d4d3761 100644
--- a/src/PrayerTracker.MigrateV9/Program.fs
+++ b/src/PrayerTracker.MigrateV9/Program.fs
@@ -76,11 +76,13 @@ open Npgsql.FSharp
 open PrayerTracker.Data
 
 task {
-    
+
     Configuration.useConnectionString (Environment.GetEnvironmentVariable "PT_SQLITE_CONN")
     do! Connection.setUp ()
-    
-    use source = NpgsqlDataSourceBuilder(Environment.GetEnvironmentVariable "PT_PG_CONN").Build()
+
+    let builder = NpgsqlDataSourceBuilder(Environment.GetEnvironmentVariable "PT_PG_CONN")
+    let _ = builder.UseNodaTime()
+    use source = builder.Build()
 
     let! churches =
         Sql.fromDataSource source
@@ -122,8 +124,8 @@ task {
     for user in users do
         let! groups =
             Sql.fromDataSource source
-            |> Sql.query "SELECT small_group_id FROM pt.user_small_group WHERE user_id = :user_id"
-            |> Sql.parameters [ ":user_id", Sql.uuid user.Id.Value ]
+            |> Sql.query "SELECT small_group_id FROM pt.user_small_group WHERE user_id = @user_id"
+            |> Sql.parameters [ "@user_id", Sql.uuid user.Id.Value ]
             |> Sql.executeAsync (fun row -> (row.uuid >> SmallGroupId) "small_group_id")
         do! Users.save { user with SmallGroups = groups }
     printfn "Migrated %d users" users.Length
diff --git a/src/PrayerTracker/data/.gitkeep b/src/PrayerTracker/data/.gitkeep
new file mode 100644
index 0000000..e69de29