diff --git a/ChangeLog b/ChangeLog
index 451e34a..710e3d1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2021-02-10  Érico Nogueira  <ericonr@disroot.org>
+
+	* configure.ac: Bumped version to 1.4.0.
+
 2021-02-10  Érico Nogueira  <ericonr@disroot.org>
 
 	* Updated argp to glibc 2.33.
diff --git a/configure.ac b/configure.ac
index 4658839..9068110 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 dnl This configure.ac is only for building a standalone argp library.
 AC_PREREQ(2.54)
 AC_INIT(argp-ba.c)
-AM_INIT_AUTOMAKE(argp, standalone-1.3)
+AM_INIT_AUTOMAKE(argp, standalone-1.4.0)
 AM_CONFIG_HEADER(config.h)
 
 # GNU libc defaults to supplying the ISO C library functions only. The