diff --git a/README.md b/README.md
index b69e478..1fe182f 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,17 @@ Repo.all(from w in Weather, where: w.city == "Berlin")
 
 ```
 
+In order to auto-migrate a schema `MyProject.Schemas.MySchema` in your `MyProject` project, create a file:
+```bash
+$ cat > priv/repo/seeds.exs 
+
+Ecto.Migration.Auto.migrate(MyProject.Repo, MyProject.Schemas.MySchema)
+^D
+
+$ mix run priv/repo/seeds.exs
+```
+This should create a database table based on `MySchema`.
+
 Lets redefine the same model in a shell and migrate it
 
 ```elixir
diff --git a/config/config.exs b/config/config.exs
index 136603b..3178df9 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -1,6 +1,6 @@
 # This file is responsible for configuring your application
 # and its dependencies with the aid of the Mix.Config module.
-use Mix.Config
+import Config
 
 # This configuration is loaded before any dependency and is restricted
 # to this project. If another project depends on this project, this
diff --git a/lib/ecto/migration/auto.ex b/lib/ecto/migration/auto.ex
index 2724c08..9272456 100644
--- a/lib/ecto/migration/auto.ex
+++ b/lib/ecto/migration/auto.ex
@@ -66,7 +66,7 @@ defmodule Ecto.Migration.Auto do
       index_changes  = (from s in SystemTable.Index, where: ^tablename == s.tablename) |> repo.all |> Index.check(tableatom, module)
 
       if migration_module = check_gen(tableatom, module, fields_changes, index_changes, opts) do
-         Ecto.Migrator.up(repo, random, migration_module)
+         Ecto.Migrator.up(repo, random(), migration_module)
          Field.update_meta(repo, module, tablename, relateds) # May be in transaction?
          Index.update_meta(repo, module, tablename, index_changes)
       end
@@ -174,11 +174,11 @@ defmodule Ecto.Migration.Auto do
       repo.get(model, "test")
     catch
       _, _ ->
-        Ecto.Migrator.up(repo, random, migration)
+        Ecto.Migrator.up(repo, random(), migration)
     end
   end
 
-  defp random, do: :crypto.rand_uniform(0, 1099511627775)
+  defp random, do: :rand.uniform(1099511627775)
 
   defp migration_module(module, []),         do: Module.concat(module, Migration)
   defp migration_module(module, [for: mod]), do: Module.concat([module, mod, Migration])
diff --git a/lib/ecto/migration/auto/index.ex b/lib/ecto/migration/auto/index.ex
index 238dfd3..c924fba 100644
--- a/lib/ecto/migration/auto/index.ex
+++ b/lib/ecto/migration/auto/index.ex
@@ -49,7 +49,7 @@ defmodule Ecto.Migration.Auto.Index do
   end
 
   defp merge_default({index, opts}) do
-    {index, Keyword.merge(default_index_opts, opts) |> List.keysort(0)}
+    {index, Keyword.merge(default_index_opts(), opts) |> List.keysort(0)}
   end
 
   defp transform_from_db(index) do
diff --git a/lib/ecto/migration/system_table.ex b/lib/ecto/migration/system_table.ex
index a8ffb02..ea2065a 100644
--- a/lib/ecto/migration/system_table.ex
+++ b/lib/ecto/migration/system_table.ex
@@ -13,7 +13,7 @@ defmodule Ecto.Migration.SystemTable.Index.Migration do
 end
 
 defmodule Ecto.Migration.SystemTable.Index do
-  use Ecto.Model
+  use Ecto.Schema
   @primary_key {:tablename, :string, []}
   schema "ecto_auto_migration_index" do
     field :index, :string
@@ -35,7 +35,7 @@ defmodule Ecto.Migration.SystemTable.Migration do
 end
 
 defmodule Ecto.Migration.SystemTable do
-  use Ecto.Model
+  use Ecto.Schema
   @primary_key {:tablename, :string, []}
   schema "ecto_auto_migration" do
     field :metainfo, :string
diff --git a/mix.exs b/mix.exs
index f02f2a8..a1c8426 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,20 +1,22 @@
 defmodule EctoMigrate.Mixfile do
   use Mix.Project
-  @version "0.6.3"
+  @version "0.6.4"
   @github "https://github.com/xerions/ecto_migrate"
 
   def project do
-    [app: :ecto_migrate,
-     version: @version,
+    [
+      app: :ecto_migrate,
+      version: @version,
 
-     description: description,
-     package: package,
+      description: description(),
+      package: package(),
 
-     # Docs
-     name: "Ecto Auto Migrate",
-     docs: [source_ref: "v#{@version}",
-            source_url: @github],
-     deps: deps]
+      # Docs
+      name: "Ecto Auto Migrate",
+      docs: [source_ref: "v#{@version}",
+             source_url: @github],
+      deps: deps()
+    ]
   end
 
   defp description do
@@ -34,7 +36,7 @@ defmodule EctoMigrate.Mixfile do
   #
   # Type `mix help compile.app` for more information
   def application do
-    [applications: [:logger]]
+    [extra_applications: [:logger, :ecto_sql]]
   end
 
   # Dependencies can be Hex packages:
@@ -47,9 +49,11 @@ defmodule EctoMigrate.Mixfile do
   #
   # Type `mix help deps` for more examples and options
   defp deps do
-    [{:postgrex, ">= 0.0.0", optional: true},
-     {:mariaex, ">= 0.0.0", optional: true},
-     {:ecto, "~> 1.0.0"},
-     {:ecto_it, "~> 0.2.0", optional: true}]
+    [#{:postgrex, ">= 0.0.0", optional: true},
+     #{:mariaex,  ">= 0.0.0", optional: true},
+     {:ecto,     "~> 3.7"},
+     {:ecto_sql, "~> 3.7"}
+     #{:ecto_it,  "~> 0.2.0", optional: true}
+    ]
   end
 end
diff --git a/test/ecto_migrate_test.exs b/test/ecto_migrate_test.exs
index afdff25..ca20435 100644
--- a/test/ecto_migrate_test.exs
+++ b/test/ecto_migrate_test.exs
@@ -12,7 +12,7 @@ defmodule TestModel do
 end
 
 defmodule Ecto.Taggable do
-  use Ecto.Model
+  use Ecto.Schema
   use Ecto.Migration.Auto.Index
 
   index(:tag_id, using: "hash")
@@ -24,11 +24,11 @@ defmodule Ecto.Taggable do
 end
 
 defmodule MyModel do
-  use Ecto.Model
+  use Ecto.Schema
   schema "my_model" do
     field :a, :string
     field :b, :integer
-    field :c, Ecto.DateTime
+    field :c, :naive_datetime
     has_many :my_model_tags, {"my_model_tags", Ecto.Taggable}, [foreign_key: :tag_id]
   end
 
@@ -39,7 +39,7 @@ end
 defmodule EctoMigrateTest do
   use ExUnit.Case
   import Ecto.Query
-  alias EctoIt.Repo
+  alias Ecto.Repo
 
   setup do
     :ok = :application.start(:ecto_it)
@@ -47,7 +47,7 @@ defmodule EctoMigrateTest do
   end
 
   test "ecto_migrate with tags test" do
-    Ecto.Migration.Auto.migrate(EctoIt.Repo, TestModel)
+    Ecto.Migration.Auto.migrate(Ecto.Repo, TestModel)
     query = from t in Ecto.Migration.SystemTable, select: t
     [result] = Repo.all(query)
     assert result.metainfo == "id:id,f:string,i:BIGINT,l:boolean"
@@ -58,15 +58,15 @@ defmodule EctoMigrateTest do
 
     Repo.insert!(%MyModel{a: "foo"})
     Repo.insert!(%MyModel{a: "bar"})
-    %MyModel{a: "foo"} |> Ecto.Model.put_source("my_model_2") |> Repo.insert!
+    %MyModel{a: "foo"} |> Ecto.Schema.put_source("my_model_2") |> Repo.insert!
 
     model = %MyModel{}
-    new_tag = Ecto.Model.build(model, :my_model_tags)
+    new_tag = Ecto.Schema.build(model, :my_model_tags)
     new_tag = %{new_tag | tag_id: 2, name: "test_tag", model: MyModel |> to_string}
-    EctoIt.Repo.insert!(new_tag)
+    Repo.insert!(new_tag)
 
     query = from c in MyModel, where: c.id == 2, preload: [:my_model_tags]
-    [result] = EctoIt.Repo.all(query)
+    [result] = Repo.all(query)
     [tags] = result.my_model_tags
 
     assert tags.id == 1