diff --git a/rebar.config b/rebar.config
index d73c77c82..e702cff51 100644
--- a/rebar.config
+++ b/rebar.config
@@ -33,7 +33,7 @@
         {jose, ".*", {git, "https://github.com/potatosalad/erlang-jose", {tag, "1.8.4"}}},
         {eimp, ".*", {git, "https://github.com/processone/eimp", {tag, "1.0.12"}}},
         {mqtree, ".*", {git, "https://github.com/processone/mqtree", {tag, "1.0.4"}}},
-	{acme, ".*", {git, "https://github.com/processone/acme.git", "7d5382265f"}},
+	{acme, ".*", {git, "https://github.com/processone/acme.git", "b4c2899"}},
         {if_var_true, stun, {stun, ".*", {git, "https://github.com/processone/stun", {tag, "1.0.29"}}}},
         {if_var_true, sip, {esip, ".*", {git, "https://github.com/processone/esip", {tag, "1.0.30"}}}},
         {if_var_true, mysql, {p1_mysql, ".*", {git, "https://github.com/processone/p1_mysql",