diff --git a/debian/changelog b/debian/changelog
index e9ad138..8eced3d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+evomaintenance (0.5.1-1) UNRELEASED; urgency=low
+
+  * verify commands presence only if needed
+
+ -- Jérémy Lecour <jlecour@evolix.fr>  Wed, 21 Aug 2019 15:38:12 +0200
+
 evomaintenance (0.5.0-1) UNRELEASED; urgency=low
 
   * options and interactive mode for selective hooks execution, and better POSIX compliance
diff --git a/evomaintenance.sh b/evomaintenance.sh
index d645e75..4820f49 100755
--- a/evomaintenance.sh
+++ b/evomaintenance.sh
@@ -4,11 +4,11 @@
 # Dependencies (all OS): git postgresql-client
 # Dependencies (Debian): sudo
 
-# version 0.5.0
+# version 0.5.1
 # Copyright 2007-2019 Evolix <info@evolix.fr>, Gregory Colpart <reg@evolix.fr>,
 #                     Jérémy Lecour <jlecour@evolix.fr> and others.
 
-VERSION="0.5.0"
+VERSION="0.5.1"
 
 show_version() {
     cat <<END