diff --git a/rebar.config b/rebar.config
index 5e1fddbff..f15c31351 100644
--- a/rebar.config
+++ b/rebar.config
@@ -46,7 +46,7 @@
     , {gen_rpc, {git, "https://github.com/emqx/gen_rpc", {tag, "2.5.1"}}}
     , {cuttlefish, {git, "https://github.com/emqx/cuttlefish", {tag, "v3.3.3"}}}
     , {minirest, {git, "https://github.com/emqx/minirest", {tag, "0.3.5"}}}
-    , {ecpool, {git, "https://github.com/emqx/ecpool", {tag, "0.5.2"}}}
+    , {ecpool, {git, "https://github.com/emqx/ecpool", {tag, "0.5.1"}}}
     , {replayq, {git, "https://github.com/emqx/replayq", {tag, "0.3.2"}}}
     , {pbkdf2, {git, "https://github.com/emqx/erlang-pbkdf2.git", {branch, "2.0.4"}}}
     , {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.2.3"}}}