cache_valid_time to apt module calls
diff --git a/roles/dns-nsd/tasks/nsd-Debian.yml b/roles/dns-nsd/tasks/nsd-Debian.yml
index 776cbdc..ca31790 100644
--- a/roles/dns-nsd/tasks/nsd-Debian.yml
+++ b/roles/dns-nsd/tasks/nsd-Debian.yml
@@ -4,6 +4,8 @@
   apt:
     name={{ item }}
     state=present
+    update_cache=yes
+    cache_valid_time=3600
   with_items:
     - nsd