diff --git a/htdocs/install/upgrade.php b/htdocs/install/upgrade.php
index 89e54ef4443..22c18c15fee 100644
--- a/htdocs/install/upgrade.php
+++ b/htdocs/install/upgrade.php
@@ -47,7 +47,7 @@ $ok = 0;
 // Ne fonctionne que si on est pas en safe_mode.
 $err=error_reporting();
 error_reporting(0);
-@set_time_limit(120);
+@set_time_limit(300);
 error_reporting($err);
 
 
diff --git a/htdocs/install/upgrade2.php b/htdocs/install/upgrade2.php
index a7226c1621d..0c96c3c6d5c 100644
--- a/htdocs/install/upgrade2.php
+++ b/htdocs/install/upgrade2.php
@@ -55,7 +55,7 @@ $error = 0;
 // Ne fonctionne que si on est pas en safe_mode.
 $err=error_reporting();
 error_reporting(0);
-@set_time_limit(120);
+@set_time_limit(300);
 error_reporting($err);
 
 $setuplang=GETPOST("selectlang",'',3)?GETPOST("selectlang",'',3):'auto';