diff --git a/mix.exs b/mix.exs
index b002e36b7..2ef48b5c4 100644
--- a/mix.exs
+++ b/mix.exs
@@ -41,11 +41,11 @@ defmodule Ejabberd.Mixfile do
      {:esip, git: "https://github.com/processone/p1_sip", tag: "1.0.0"},
      {:p1_yaml, git: "https://github.com/processone/p1_yaml", tag: "1.0.0"},
      {:jiffy, git: "https://github.com/davisp/jiffy", tag: "0.14.5"},
-     {:oauth2, git: "https://github.com/kivra/oauth2", "8d129fbf8866930b4ffa6dd84e65bd2b32b9acb8"},
+     {:oauth2, git: "https://github.com/kivra/oauth2", ref: "8d129fbf8866930b4ffa6dd84e65bd2b32b9acb8"},
      {:xmlrpc, git: "https://github.com/rds13/xmlrpc.git", tag: "1.15"},
      {:p1_mysql, git: "https://github.com/processone/mysql", tag: "1.0.0"},
      {:p1_pgsql, git: "https://github.com/processone/pgsql", tag: "1.0.0"},
-     {:sqlite3, git: "https://github.com/alexeyr/erlang-sqlite3", "cbc3505f7a131254265d3ef56191b2581b8cc172"},
+     {:sqlite3, git: "https://github.com/alexeyr/erlang-sqlite3", ref: "cbc3505f7a131254265d3ef56191b2581b8cc172"},
      {:p1_zlib, git: "https://github.com/processone/zlib", tag: "1.0.0"},
      {:p1_iconv, git: "https://github.com/processone/eiconv", tag: "0.9.0"},
      {:eredis, git: "https://github.com/wooga/eredis", tag: "v1.0.8"},