diff --git a/mix.exs b/mix.exs
index 49fe03f74..2e7e0c790 100644
--- a/mix.exs
+++ b/mix.exs
@@ -116,7 +116,7 @@ defmodule Ejabberd.MixProject do
      {:fast_xml, "~> 1.1"},
      {:fast_yaml, "~> 1.0"},
      {:idna, "~> 6.0"},
-     {:jiffy, "~> 1.0.5"},
+     {:jiffy, "~> 1.1.1"},
      {:jose, "~> 1.11.1"},
      {:mqtree, "~> 1.0"},
      {:p1_acme, "~> 1.0"},
diff --git a/rebar.config b/rebar.config
index 7520a57c7..b0bc0412c 100644
--- a/rebar.config
+++ b/rebar.config
@@ -37,7 +37,7 @@
         {fast_xml, ".*", {git, "https://github.com/processone/fast_xml", {tag, "1.1.48"}}},
         {fast_yaml, ".*", {git, "https://github.com/processone/fast_yaml", {tag, "1.0.32"}}},
         {idna, ".*", {git, "https://github.com/benoitc/erlang-idna", {tag, "6.0.0"}}},
-        {jiffy, ".*", {git, "https://github.com/davisp/jiffy", {tag, "1.0.5"}}},
+        {jiffy, ".*", {git, "https://github.com/davisp/jiffy", {tag, "1.1.1"}}},
         {jose, ".*", {git, "https://github.com/potatosalad/erlang-jose", {tag, "1.11.1"}}},
         {if_version_below, "22",
          {lager, ".*", {git, "https://github.com/erlang-lager/lager", {tag, "3.9.1"}}}
@@ -51,7 +51,7 @@
           {luerl, ".*", {git, "https://github.com/rvirding/luerl", {tag, "1.0.0"}}}
          }},
         {mqtree, ".*", {git, "https://github.com/processone/mqtree", {tag, "1.0.14"}}},
-        {p1_acme, ".*", {git, "https://github.com/processone/p1_acme", {tag, "1.0.16"}}},
+        {p1_acme, ".*", {git, "https://github.com/processone/p1_acme", {tag, "1.0.18"}}},
         {if_var_true, mysql,
          {p1_mysql, ".*", {git, "https://github.com/processone/p1_mysql", {tag, "1.0.19"}}}},
         {p1_oauth2, ".*", {git, "https://github.com/processone/p1_oauth2", {tag, "0.6.10"}}},