diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f817d8..73a9d37 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 # Version 1.0.4
 
+* Updating yconf to version 1.0.3.
 * Update copyright year
 * Update yconf
 
diff --git a/rebar.config b/rebar.config
index b2a9ec1..5726369 100644
--- a/rebar.config
+++ b/rebar.config
@@ -22,7 +22,7 @@
 	    {platform_define, "^(R|1|20)", deprecated_stacktrace}]}.
 
 {deps, [{jiffy, ".*", {git, "https://github.com/davisp/jiffy.git", {tag, "1.0.1"}}},
-	{yconf, ".*", {git, "https://github.com/processone/yconf.git", {tag, "1.0.2"}}},
+	{yconf, ".*", {git, "https://github.com/processone/yconf.git", {tag, "1.0.3"}}},
 	{idna, ".*", {git, "https://github.com/benoitc/erlang-idna", {tag, "6.0.0"}}},
 	{jose, ".*", {git, "https://github.com/potatosalad/erlang-jose", {tag, "1.9.0"}}}]}.
 
diff --git a/src/p1_acme.app.src b/src/p1_acme.app.src
index b93d796..b23112b 100644
--- a/src/p1_acme.app.src
+++ b/src/p1_acme.app.src
@@ -17,7 +17,7 @@
 %%%-------------------------------------------------------------------
 {application, p1_acme,
  [{description,  "ACME client"},
-  {vsn,          "1.0.3"},
+  {vsn,          "1.0.4"},
   {modules,      []},
   {registered,   []},
   {applications, [kernel, stdlib, fast_yaml,