diff --git a/mix.exs b/mix.exs
index 6fc177e3c..3589a323f 100644
--- a/mix.exs
+++ b/mix.exs
@@ -139,7 +139,7 @@ defmodule Ejabberd.MixProject do
      {:idna, "~> 6.0"},
      {:jiffy, "~> 1.1.1"},
      {:mqtree, "~> 1.0"},
-     {:p1_acme, "~> 1.0"},
+     {:p1_acme, git: "https://github.com/processone/p1_acme", branch: "master"},
      {:p1_oauth2, "~> 0.6"},
      {:p1_utils, "~> 1.0"},
      {:pkix, "~> 1.0"},
diff --git a/rebar.config b/rebar.config
index 3a7c41d8c..6515f0425 100644
--- a/rebar.config
+++ b/rebar.config
@@ -74,7 +74,7 @@
           {luerl, ".*", {git, "https://github.com/processone/luerl", {branch, "otp27"}}}
         }},
         {mqtree, ".*", {git, "https://github.com/processone/mqtree", {tag, "1.0.16"}}},
-        {p1_acme, ".*", {git, "https://github.com/processone/p1_acme", {tag, "1.0.22"}}},
+        {p1_acme, ".*", {git, "https://github.com/processone/p1_acme", {branch, "master"}}},
         {if_var_true, mysql,
          {p1_mysql, ".*", {git, "https://github.com/processone/p1_mysql", {tag, "1.0.23"}}}},
         {p1_oauth2, ".*", {git, "https://github.com/processone/p1_oauth2", {tag, "0.6.14"}}},