diff --git a/mix.exs b/mix.exs
index 04fff12..bdcbe83 100644
--- a/mix.exs
+++ b/mix.exs
@@ -34,7 +34,7 @@ defmodule Scrivener.Ecto.Mixfile do
       {:earmark, ">= 0.0.0", only: :dev},
       {:ex_doc, "~> 0.11.0", only: :dev},
       {:ex_spec, "~> 1.0", only: :test},
-      {:postgrex, ">= 0.0.0", optional: true}
+      {:postgrex, "~> 0.11.2", optional: true}
     ]
   end
 
diff --git a/mix.lock b/mix.lock
index be86895..a331f8f 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,12 +1,12 @@
 %{"connection": {:hex, :connection, "1.0.2", "f4a06dd3ecae4141aa66f94ce92ea4c4b8753069472814932f1cadbc3078ab80", [:mix], []},
-  "db_connection": {:hex, :db_connection, "0.2.5", "3e5e28019e0ec744345568d22a2f5206109bff0e2571f4d7819e0d14cf955f3e", [:mix], [{:sbroker, "~> 0.7", [hex: :sbroker, optional: true]}, {:poolboy, "~> 1.5", [hex: :poolboy, optional: true]}, {:connection, "~> 1.0.2", [hex: :connection, optional: false]}]},
+  "db_connection": {:hex, :db_connection, "1.0.0-rc.1", "4d9ac0db8a6edf401103b85ad29b40188b70adc649ba2a028df6ff2207cfb250", [:mix], [{:sbroker, "~> 1.0.0-beta.2", [hex: :sbroker, optional: true]}, {:poolboy, "~> 1.5", [hex: :poolboy, optional: true]}, {:connection, "~> 1.0.2", [hex: :connection, optional: false]}]},
   "decimal": {:hex, :decimal, "1.1.2", "79a769d4657b2d537b51ef3c02d29ab7141d2b486b516c109642d453ee08e00c", [:mix], []},
   "dialyxir": {:hex, :dialyxir, "0.3.3", "2f8bb8ab4e17acf4086cae847bd385c0f89296d3e3448dc304c26bfbe4b46cb4", [:mix], []},
   "dialyze": {:hex, :dialyze, "0.2.1"},
   "earmark": {:hex, :earmark, "0.2.1", "ba6d26ceb16106d069b289df66751734802777a3cbb6787026dd800ffeb850f3", [:mix], []},
-  "ecto": {:hex, :ecto, "2.0.0-rc.5", "a95184a260edb89669be7746b3b270725ce6940e378b05d19df82eecf52544cb", [:mix], [{:sbroker, "~> 0.7", [hex: :sbroker, optional: true]}, {:postgrex, "~> 0.11.1", [hex: :postgrex, optional: true]}, {:poolboy, "~> 1.5", [hex: :poolboy, optional: false]}, {:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: true]}, {:mariaex, "~> 0.7.1", [hex: :mariaex, optional: true]}, {:decimal, "~> 1.0", [hex: :decimal, optional: false]}]},
+  "ecto": {:hex, :ecto, "2.0.0-rc.6", "a207218470d8c6366a20940e33f6f9fcd2e9a34c8e9779b808fe100f88c05f5e", [:mix], [{:poison, "~> 1.5 or ~> 2.0", [hex: :poison, optional: true]}, {:sbroker, "~> 1.0-beta", [hex: :sbroker, optional: true]}, {:postgrex, "~> 0.11.2", [hex: :postgrex, optional: true]}, {:mariaex, "~> 0.7.7", [hex: :mariaex, optional: true]}, {:decimal, "~> 1.0", [hex: :decimal, optional: false]}, {:poolboy, "~> 1.5", [hex: :poolboy, optional: false]}]},
   "ex_doc": {:hex, :ex_doc, "0.11.5", "0dc51cb84f8312162a2313d6c71573a9afa332333d8a332bb12540861b9834db", [:mix], [{:earmark, "~> 0.1.17 or ~> 0.2", [hex: :earmark, optional: true]}]},
   "ex_spec": {:hex, :ex_spec, "1.0.0", "b1e791072fecbf80c725adf45e7cbdf3d96af3765638a1f1547824706ece4bc9", [:mix], []},
   "poolboy": {:hex, :poolboy, "1.5.1", "6b46163901cfd0a1b43d692657ed9d7e599853b3b21b95ae5ae0a777cf9b6ca8", [:rebar], []},
-  "postgrex": {:hex, :postgrex, "0.11.1", "f48af70c0a58b9bfd1aaa456ec4273624554cfb837726b6a7f0701da4a94b2dd", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, optional: false]}, {:db_connection, "~> 0.2", [hex: :db_connection, optional: false]}, {:connection, "~> 1.0", [hex: :connection, optional: false]}]},
+  "postgrex": {:hex, :postgrex, "0.11.2", "139755c1359d3c5c6d6e8b1ea72556d39e2746f61c6ddfb442813c91f53487e8", [:mix], [{:connection, "~> 1.0", [hex: :connection, optional: false]}, {:db_connection, "~> 1.0-rc", [hex: :db_connection, optional: false]}, {:decimal, "~> 1.0", [hex: :decimal, optional: false]}]},
   "scrivener": {:git, "https://github.com/drewolson/scrivener", "edea64662564e9fbc9b5a8f50ed265c93d5dfa67", [branch: "v2"]}}