diff --git a/CHANGELOG.md b/CHANGELOG.md
index 871294a..44a49e3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.3.1]
 
 ### Fixed
 
diff --git a/src/nhttp_lib.app.src b/src/nhttp_lib.app.src
index 27408ea..cb00bc7 100644
--- a/src/nhttp_lib.app.src
+++ b/src/nhttp_lib.app.src
@@ -1,6 +1,6 @@
 {application, nhttp_lib, [
     {description, "HTTP protocol primitives for Erlang/OTP 27+ (HTTP/1.1, HTTP/2, HTTP/3, QPACK)"},
-    {vsn, "1.3.0"},
+    {vsn, "1.3.1"},
     {registered, []},
     {applications, [
         kernel,