diff --git a/CHANGELOG.md b/CHANGELOG.md
index e0f7e82b..0c06009c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 Requires Elixir 1.11+.
 
 * Permit native application redirect uri
+* Separate Ecto migration and field options to resolve ecto 3.8 deprecation
 
 ## v0.5.6 (2020-01-07)
 
diff --git a/lib/ex_oauth2_provider/access_grants/access_grant.ex b/lib/ex_oauth2_provider/access_grants/access_grant.ex
index 6f26d59c..d3071bbf 100644
--- a/lib/ex_oauth2_provider/access_grants/access_grant.ex
+++ b/lib/ex_oauth2_provider/access_grants/access_grant.ex
@@ -23,9 +23,9 @@ defmodule ExOauth2Provider.AccessGrants.AccessGrant do
   @doc false
   def attrs() do
     [
-      {:token, :string, null: false},
-      {:expires_in, :integer, null: false},
-      {:redirect_uri, :string, null: false},
+      {:token, :string, [], null: false},
+      {:expires_in, :integer, [], null: false},
+      {:redirect_uri, :string, [], null: false},
       {:revoked_at, :utc_datetime},
       {:scopes, :string}
     ]
diff --git a/lib/ex_oauth2_provider/access_tokens/access_token.ex b/lib/ex_oauth2_provider/access_tokens/access_token.ex
index 49242a3e..e44a49d1 100644
--- a/lib/ex_oauth2_provider/access_tokens/access_token.ex
+++ b/lib/ex_oauth2_provider/access_tokens/access_token.ex
@@ -24,12 +24,12 @@ defmodule ExOauth2Provider.AccessTokens.AccessToken do
   @doc false
   def attrs() do
     [
-      {:token, :string, null: false},
+      {:token, :string, [], null: false},
       {:refresh_token, :string},
       {:expires_in, :integer},
       {:revoked_at, :utc_datetime},
       {:scopes, :string},
-      {:previous_refresh_token, :string, null: false, default: ""}
+      {:previous_refresh_token, :string, [default: ""], null: false}
     ]
   end
 
diff --git a/lib/ex_oauth2_provider/applications/application.ex b/lib/ex_oauth2_provider/applications/application.ex
index 4f342201..217d7236 100644
--- a/lib/ex_oauth2_provider/applications/application.ex
+++ b/lib/ex_oauth2_provider/applications/application.ex
@@ -42,11 +42,11 @@ defmodule ExOauth2Provider.Applications.Application do
   @doc false
   def attrs() do
     [
-    {:name, :string, null: false},
-    {:uid, :string, null: false},
-    {:secret, :string, null: false, default: ""},
-    {:redirect_uri, :string, null: false},
-    {:scopes, :string, null: false, default: ""},
+    {:name, :string, [], null: false},
+    {:uid, :string, [], null: false},
+    {:secret, :string, [default: ""], null: false},
+    {:redirect_uri, :string, [], null: false},
+    {:scopes, :string, [default: ""], null: false},
     ]
   end
 
diff --git a/lib/ex_oauth2_provider/schema.ex b/lib/ex_oauth2_provider/schema.ex
index ad9419d1..20c30593 100644
--- a/lib/ex_oauth2_provider/schema.ex
+++ b/lib/ex_oauth2_provider/schema.ex
@@ -18,9 +18,12 @@ defmodule ExOauth2Provider.Schema do
         {name, type} ->
           field(name, type)
 
-        {name, type, defaults} ->
-          field(name, type, defaults)
-      end)
+        {name, type, field_options} ->
+          field(name, type, field_options)
+
+        {name, type, field_options, _migration_options} ->
+          field(name, type, field_options)
+        end)
 
       unquote(module).assocs()
       |> unquote(__MODULE__).__assocs_with_queryable__(@config)
@@ -29,14 +32,14 @@ defmodule ExOauth2Provider.Schema do
         {:belongs_to, name, queryable} ->
           belongs_to(name, queryable)
 
-        {:belongs_to, name, queryable, defaults} ->
-          belongs_to(name, queryable, defaults)
+        {:belongs_to, name, queryable, options} ->
+          belongs_to(name, queryable, options)
 
         {:has_many, name, queryable} ->
           has_many(name, queryable)
 
-        {:has_many, name, queryable, defaults} ->
-          has_many(name, queryable, defaults)
+        {:has_many, name, queryable, options} ->
+          has_many(name, queryable, options)
       end)
     end
   end
diff --git a/lib/mix/ex_oauth2_provider/migration.ex b/lib/mix/ex_oauth2_provider/migration.ex
index 76e876c3..7c106c3e 100644
--- a/lib/mix/ex_oauth2_provider/migration.ex
+++ b/lib/mix/ex_oauth2_provider/migration.ex
@@ -98,10 +98,11 @@ defmodule Mix.ExOauth2Provider.Migration do
   end
 
   defp schema(module, table, namespace, %{binary_id: binary_id}) do
-    attrs           =
+    attrs =
       module.attrs()
       |> Kernel.++(attrs_from_assocs(module.assocs(), namespace))
       |> migration_attrs()
+
     defaults        = defaults(attrs)
     {assocs, attrs} = partition_attrs(attrs)
     table           = "#{namespace}_#{table}"
@@ -139,13 +140,25 @@ defmodule Mix.ExOauth2Provider.Migration do
   defp to_migration_attr({name, type}) do
     {name, type, ""}
   end
-  defp to_migration_attr({name, type, []}) do
-    to_migration_attr({name, type})
+  defp to_migration_attr({name, type, field_options}) do
+    to_migration_attr({name, type, field_options, []})
   end
-  defp to_migration_attr({name, type, defaults}) do
-    defaults = Enum.map_join(defaults, ", ", fn {k, v} -> "#{k}: #{inspect v}" end)
+  defp to_migration_attr({name, type, field_options, migration_options}) do
+    field_options
+    |> Keyword.get(:default)
+    |> case do
+      nil -> migration_options ++ []
+      default -> migration_options ++ [default: default]
+    end
+    |> case do
+      [] ->
+        to_migration_attr({name, type})
+
+      options ->
+        options = Enum.map_join(options, ", ", fn {k, v} -> "#{k}: #{inspect v}" end)
 
-    {name, type, ", #{defaults}"}
+        {name, type, ", #{options}"}
+    end
   end
 
   defp defaults(attrs) do
diff --git a/test/ex_oauth2_provider/oauth2/token/strategy/revoke_test.exs b/test/ex_oauth2_provider/oauth2/token/strategy/revoke_test.exs
index dc8ad79b..a51ff8da 100644
--- a/test/ex_oauth2_provider/oauth2/token/strategy/revoke_test.exs
+++ b/test/ex_oauth2_provider/oauth2/token/strategy/revoke_test.exs
@@ -49,7 +49,7 @@ defmodule ExOauth2Provider.Token.Strategy.RevokeTest do
   end
 
   test "#revoke/2 when access token owned by another client", %{valid_request: valid_request, access_token: access_token} do
-    new_application = Fixtures.application(uid: "new_app", client_secret: "new")
+    new_application = Fixtures.application(uid: "new_app", secret: "new")
     QueryHelpers.change!(access_token, application_id: new_application.id)
 
     assert Token.revoke(valid_request, otp_app: :ex_oauth2_provider) == {:ok, %{}}