diff --git a/ChangeLog.md b/ChangeLog.md
index e6aa98a..91f3269 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -3,7 +3,7 @@
 This document describes notable changes. For details, see the [source code
 repository history](https://github.com/ddclient/ddclient/commits/master).
 
-## 20XX-XX-XX v3.11.1_0 (WIP)
+## 2023-10-25 v3.11.1
 
 ### Bug fixes
   * Fixed simultaneous IPv4 and IPv6 updates for provider porkbun
diff --git a/configure.ac b/configure.ac
index d4a4152..ed1caed 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ([2.63])
-AC_INIT([ddclient], [3.11.1_0])
+AC_INIT([ddclient], [3.11.1])
 AC_CONFIG_SRCDIR([ddclient.in])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
diff --git a/ddclient.in b/ddclient.in
index 94622aa..4275d5a 100755
--- a/ddclient.in
+++ b/ddclient.in
@@ -21,7 +21,7 @@ use File::Temp;
 use Getopt::Long;
 use Sys::Hostname;
 
-use version 0.77; our $VERSION = version->declare('3.11.1_0');
+use version 0.77; our $VERSION = version->declare('3.11.1');
 my $version = $VERSION->stringify();
 my $programd = $0;
 $programd =~ s%^.*/%%;