diff --git a/Changelog.md b/Changelog.md
index c04f7e9..a856209 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,8 @@
+### 0.4.0: September 19, 2018
+
+* XML parser had been rewritten from xml-conduit to xeno library,
+  and is almost 50% faster
+
 ### 0.3.1: September 10, 2018
 
 * Third-party licenses are now included in project
diff --git a/dist/archlinux-static/PKGBUILD b/dist/archlinux-static/PKGBUILD
index 9a41202..2832151 100644
--- a/dist/archlinux-static/PKGBUILD
+++ b/dist/archlinux-static/PKGBUILD
@@ -2,7 +2,7 @@
 
 _pkgname=ejstand
 pkgname="${_pkgname}-static"
-pkgver=0.3.1
+pkgver=0.4.0
 pkgrel=1
 pkgdesc='Ejudge Configurable Web Standings Daemon for Multiple Contests'
 url="https://apathism.net/git/apathism/${_pkgname}"
diff --git a/ejstand.cabal b/ejstand.cabal
index 86ee23e..f3cd20f 100644
--- a/ejstand.cabal
+++ b/ejstand.cabal
@@ -1,5 +1,5 @@
 name:                  ejstand
-version:               0.3.1
+version:               0.4.0
 synopsis:              Ejudge Configurable Web Standings Daemon for Multiple Contests
 homepage:              https://apathism.net/git/apathism/ejstand
 bug-reports:           https://apathism.net/git/apathism/ejstand/issues