diff --git a/mix.exs b/mix.exs
index 4200325ce..ca4dbe203 100644
--- a/mix.exs
+++ b/mix.exs
@@ -99,7 +99,7 @@ defmodule Ejabberd.Mixfile do
      {:idna, "~> 6.0"},
      {:jiffy, "~> 1.0.5"},
      {:jose, "~> 1.8"},
-     {:lager, "~> 3.6.0"},
+     {:lager, "~> 3.9.1"},
      {:mqtree, "~> 1.0"},
      {:p1_acme, "~> 1.0"},
      {:p1_mysql, "~> 1.0"},
diff --git a/rebar.config b/rebar.config
index 649fd585b..17c841880 100644
--- a/rebar.config
+++ b/rebar.config
@@ -39,7 +39,7 @@
         {idna, ".*", {git, "https://github.com/benoitc/erlang-idna", {tag, "6.0.0"}}},
         {jiffy, ".*", {git, "https://github.com/davisp/jiffy", {tag, "1.0.5"}}},
         {jose, ".*", {git, "https://github.com/potatosalad/erlang-jose", {tag, "1.9.0"}}},
-        {lager, ".*", {git, "https://github.com/erlang-lager/lager", {tag, "3.6.10"}}},
+        {lager, ".*", {git, "https://github.com/erlang-lager/lager", {tag, "3.9.1"}}},
         {if_var_true, lua,
          {luerl, ".*", {git, "https://github.com/rvirding/luerl", {tag, "v0.3"}}}},
         {mqtree, ".*", {git, "https://github.com/processone/mqtree", {tag, "1.0.13"}}},