diff --git a/mix.exs b/mix.exs
index 8d91470..fe7265f 100644
--- a/mix.exs
+++ b/mix.exs
@@ -36,17 +36,18 @@ defmodule Scrivener.Ecto.Mixfile do
     ]
   end
 
-  defp applications(:test), do: [:scrivener, :postgrex, :ecto, :logger]
+  defp applications(:test), do: [:scrivener, :postgrex, :ecto, :logger, :telemetry]
   defp applications(_), do: [:scrivener, :logger]
 
   defp deps do
     [
       {:scrivener, "~> 2.4"},
-      {:ecto, git: "https://github.com/elixir-ecto/ecto.git"},
+      {:ecto, "~> 3.0-rc"},
+      {:ecto_sql, "~> 3.0-rc"},
       {:dialyxir, "~> 0.5.0", only: :dev},
       {:earmark, ">= 0.0.0", only: :dev},
       {:ex_doc, "~> 0.18.0", only: :dev},
-      {:postgrex, "~> 0.14.0-dev", github: "elixir-ecto/postgrex", ref: "6cabc3b"}
+      {:postgrex, "~> 0.14.0-rc"}
     ]
   end
 
diff --git a/mix.lock b/mix.lock
index a8fb6a7..6394131 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,11 +1,13 @@
 %{
   "connection": {:hex, :connection, "1.0.4", "a1cae72211f0eef17705aaededacac3eb30e6625b04a6117c1b2db6ace7d5976", [:mix], [], "hexpm"},
-  "db_connection": {:git, "https://github.com/elixir-ecto/db_connection.git", "854d917721b820576da4b74b3620bf359c61179f", [ref: "854d917"]},
+  "db_connection": {:hex, :db_connection, "2.0.0-rc.0", "f6960e86b5e524468ec16fb7277e509c784de565ac520213a1813ad2bf7d802f", [:mix], [{:connection, "~> 1.0.2", [hex: :connection, repo: "hexpm", optional: false]}], "hexpm"},
   "decimal": {:hex, :decimal, "1.5.0", "b0433a36d0e2430e3d50291b1c65f53c37d56f83665b43d79963684865beab68", [:mix], [], "hexpm"},
   "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm"},
   "earmark": {:hex, :earmark, "1.2.6", "b6da42b3831458d3ecc57314dff3051b080b9b2be88c2e5aa41cd642a5b044ed", [:mix], [], "hexpm"},
-  "ecto": {:git, "https://github.com/elixir-ecto/ecto.git", "bba34c5ba218537bf196630179e4934946ab94e0", []},
+  "ecto": {:hex, :ecto, "3.0.0-rc.1", "c966a270b289739d6895f61bee339065a3075d1df34ddd369d400cf0c936fd6c", [:mix], [{:decimal, "~> 1.5", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:poison, "~> 2.2 or ~> 3.0", [hex: :poison, repo: "hexpm", optional: true]}], "hexpm"},
+  "ecto_sql": {:hex, :ecto_sql, "3.0.0-rc.0", "a61da743812a47174e8b79dbe6aa7d4a9f7e6dbf8c90cfd7015f3767738b37ba", [:mix], [{:db_connection, "~> 2.0-rc.0", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.0.0-rc.1", [hex: :ecto, repo: "hexpm", optional: false]}, {:mariaex, "~> 0.9.0-rc.0", [hex: :mariaex, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.14.0-rc.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.2.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm"},
   "ex_doc": {:hex, :ex_doc, "0.18.4", "4406b8891cecf1352f49975c6d554e62e4341ceb41b9338949077b0d4a97b949", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm"},
-  "postgrex": {:git, "https://github.com/elixir-ecto/postgrex.git", "6cabc3b018cabc6e036e7d162414889a20785b96", [ref: "6cabc3b"]},
+  "postgrex": {:hex, :postgrex, "0.14.0-rc.1", "a88cbeab25c5f3fc505fc6590bd30877a5acf11b448aedb23b41cbc063824ceb", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.0-rc.0", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm"},
   "scrivener": {:hex, :scrivener, "2.5.0", "e1f78c62b6806d91cc9c4778deef1ea4e80aa9fadfce2c16831afe0468cc8a2c", [:mix], [], "hexpm"},
+  "telemetry": {:hex, :telemetry, "0.2.0", "5b40caa3efe4deb30fb12d7cd8ed4f556f6d6bd15c374c2366772161311ce377", [:mix], [], "hexpm"},
 }
diff --git a/test/support/repo.ex b/test/support/repo.ex
index 3b1b88e..dd03930 100644
--- a/test/support/repo.ex
+++ b/test/support/repo.ex
@@ -1,4 +1,4 @@
 defmodule Scrivener.Ecto.Repo do
-  use Ecto.Repo, otp_app: :scrivener_ecto
+  use Ecto.Repo, otp_app: :scrivener_ecto, adapter: Ecto.Adapters.Postgres
   use Scrivener, page_size: 5, max_page_size: 10
 end