diff --git a/CHANGELOG.md b/CHANGELOG.md
index beb65d74..c4f91ae5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+## Adminer dev
+
 ## Adminer 5.4.2 (released 2026-02-08)
 - Avoid denial-of-service via version check (GHSA-q4f2-39gr-45jh, regression from 4.6.2)
 - Pretty print JSON in edit
diff --git a/adminer/include/version.inc.php b/adminer/include/version.inc.php
index a9ed6484..468e4460 100644
--- a/adminer/include/version.inc.php
+++ b/adminer/include/version.inc.php
@@ -1,4 +1,4 @@
 <?php
 namespace Adminer;
 
-const VERSION = "5.4.2";
+const VERSION = "5.4.3-dev";