diff --git a/conf/garradin_post_migration.sh b/conf/garradin_post_migration.sh
index b79eab4..a0395c2 100644
--- a/conf/garradin_post_migration.sh
+++ b/conf/garradin_post_migration.sh
@@ -18,6 +18,12 @@ old_app="__OLD_APP__"
 new_app="__NEW_APP__"
 script_name="$0"
 
+#=================================================
+# DELETE OLD APP'S SESSIONS
+#=================================================
+
+[ -n "$old_app" ] && find /var/lib/php/sessions/ -user "$old_app" -delete
+
 #=================================================
 # DELETE OLD APP'S SETTINGS
 #=================================================