diff --git a/roles/ispmail-packages/tasks/main.yml b/roles/ispmail-packages/tasks/main.yml
index c1744df..d217fc3 100644
--- a/roles/ispmail-packages/tasks/main.yml
+++ b/roles/ispmail-packages/tasks/main.yml
@@ -1,6 +1,6 @@
 ---
 - name: install required binary packages
-  apt: name={{item}} state=installed
+  apt: name={{item}} state=installed update_cache=yes
   with_items:
   - mysql-server
   - postfix