diff --git a/tasks/setup-Debian.yml b/tasks/setup-Debian.yml
index c62fa88..d7c2b18 100644
--- a/tasks/setup-Debian.yml
+++ b/tasks/setup-Debian.yml
@@ -1,4 +1,7 @@
 ---
+- name: Run "apt-get update" to get rid of expired cache.
+  apt: update_cache=yes
+
 - name: Ensure PHP packages are installed.
   apt:
     name: "{{ item }}"