diff --git a/playbooks/roles/os_horizon/tasks/horizon_install.yml b/playbooks/roles/os_horizon/tasks/horizon_install.yml
index 74841d150b..11446a6ebc 100644
--- a/playbooks/roles/os_horizon/tasks/horizon_install.yml
+++ b/playbooks/roles/os_horizon/tasks/horizon_install.yml
@@ -52,6 +52,7 @@
   when:
     - horizon_venv_enabled | bool
     - horizon_get_venv | failed
+  notify: Restart apache2
   tags:
     - horizon-pip-packages
 
@@ -66,5 +67,6 @@
   delay: 2
   with_items: horizon_pip_packages
   when: not horizon_venv_enabled | bool
+  notify: Restart apache2
   tags:
     - horizon-pip-packages
diff --git a/playbooks/roles/os_horizon/tasks/horizon_pre_install.yml b/playbooks/roles/os_horizon/tasks/horizon_pre_install.yml
index cbfd14a27a..6c2dda7a44 100644
--- a/playbooks/roles/os_horizon/tasks/horizon_pre_install.yml
+++ b/playbooks/roles/os_horizon/tasks/horizon_pre_install.yml
@@ -149,6 +149,7 @@
   when:
     - horizon_venv_enabled | bool
     - horizon_get_venv | changed
+  notify: Restart apache2
   tags:
     - horizon-install
     - horizon-pip-packages