diff --git a/ChangeLog b/ChangeLog
index 2f31642be53..aae7081c24c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16,6 +16,7 @@ NEW: Module DebugBar is available as a stable module.
 WARNING:
 
 Following changes may create regressions for some external modules, but were necessary to make Dolibarr better:
+* PHP 5.4 is no more supported. Minimum PHP is now 5.5+.
 * The PHP extension php-intl is not mandatory but should be installed to have new features working correctly.
 * Method GetUrlTrackingStatus were renamed into getUrlTrackingStatus for consistency with naming rules.
 * API getListOfCivility has been renamed into getListOfCivilities for consistency with naming rules.
diff --git a/htdocs/install/check.php b/htdocs/install/check.php
index e73b4eca70b..8b1fbba0c1b 100644
--- a/htdocs/install/check.php
+++ b/htdocs/install/check.php
@@ -76,8 +76,8 @@ if (! empty($useragent))
 
 
 // Check PHP version
-$arrayphpminversionerror = array(5,4,0);
-$arrayphpminversionwarning = array(5,4,0);
+$arrayphpminversionerror = array(5,5,0);
+$arrayphpminversionwarning = array(5,5,0);
 if (versioncompare(versionphparray(), $arrayphpminversionerror) < 0)        // Minimum to use (error if lower)
 {
 	print '<img src="../theme/eldy/img/error.png" alt="Error"> '.$langs->trans("ErrorPHPVersionTooLow", versiontostring($arrayphpminversionerror));