diff --git a/manifests/wsgi/apache.pp b/manifests/wsgi/apache.pp
index 17e601a3..c1e1d661 100644
--- a/manifests/wsgi/apache.pp
+++ b/manifests/wsgi/apache.pp
@@ -40,11 +40,11 @@
 #
 # [*wsgi_processes*]
 #   (optional) Number of Horizon processes to spawn
-#   Defaults to '3'
+#   Defaults to $::os_workers
 #
 # [*wsgi_threads*]
 #   (optional) Number of thread to run in a Horizon process
-#   Defaults to '10'
+#   Defaults to '1'
 #
 # [*custom_wsgi_process_options*]
 #   (optional) gives you the oportunity to add custom process options or to
@@ -98,8 +98,8 @@ class horizon::wsgi::apache (
   $horizon_cert                = undef,
   $horizon_key                 = undef,
   $horizon_ca                  = undef,
-  $wsgi_processes              = '3',
-  $wsgi_threads                = '10',
+  $wsgi_processes              = $::os_workers,
+  $wsgi_threads                = '1',
   $custom_wsgi_process_options = {},
   $priority                    = '15',
   $vhost_conf_name             = 'horizon_vhost',
diff --git a/releasenotes/notes/apache-wsgi-processes-threads-66255fc01d1d48ed.yaml b/releasenotes/notes/apache-wsgi-processes-threads-66255fc01d1d48ed.yaml
new file mode 100644
index 00000000..3d79f581
--- /dev/null
+++ b/releasenotes/notes/apache-wsgi-processes-threads-66255fc01d1d48ed.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    The default value for horizon::wsgi::apache::wsgi_processes changed to $::os_workers
+  - |
+    The default value for horizon::wsgi::apache::wsgi_threads changed to 1
diff --git a/spec/classes/horizon_wsgi_apache_spec.rb b/spec/classes/horizon_wsgi_apache_spec.rb
index 6414c9f6..e9e34a00 100644
--- a/spec/classes/horizon_wsgi_apache_spec.rb
+++ b/spec/classes/horizon_wsgi_apache_spec.rb
@@ -3,9 +3,7 @@ require 'spec_helper'
 describe 'horizon::wsgi::apache' do
   let :params do
     {
-      :servername     => 'some.host.tld',
-      :wsgi_processes => '3',
-      :wsgi_threads   => '10',
+      :servername => 'some.host.tld',
     }
   end
 
@@ -46,8 +44,8 @@ describe 'horizon::wsgi::apache' do
         :wsgi_daemon_process         => platforms_params[:wsgi_group],
         :wsgi_application_group      => '%{GLOBAL}',
         :wsgi_daemon_process_options => {
-          'processes'    => params[:wsgi_processes],
-          'threads'      => params[:wsgi_threads],
+          'processes'    => facts[:os_workers],
+          'threads'      => '1',
           'user'         => platforms_params[:unix_user],
           'group'        => platforms_params[:unix_group],
           'display-name' => 'horizon'
@@ -58,8 +56,10 @@ describe 'horizon::wsgi::apache' do
     context 'with overridden parameters' do
       before do
         params.merge!({
-          :priority      => '10',
-          :redirect_type => 'temp',
+          :priority       => '10',
+          :redirect_type  => 'temp',
+          :wsgi_processes => '13',
+          :wsgi_threads   => '3'
         })
       end
 
@@ -88,8 +88,8 @@ describe 'horizon::wsgi::apache' do
         :wsgi_daemon_process         => platforms_params[:wsgi_group],
         :wsgi_application_group      => '%{GLOBAL}',
         :wsgi_daemon_process_options => {
-          'processes'    => params[:wsgi_processes],
-          'threads'      => params[:wsgi_threads],
+          'processes'    => '13',
+          'threads'      => '3',
           'user'         => platforms_params[:unix_user],
           'group'        => platforms_params[:unix_group],
           'display-name' => 'horizon'
@@ -109,8 +109,8 @@ describe 'horizon::wsgi::apache' do
 
       it { should contain_apache__vhost('horizon_vhost').with(
         :wsgi_daemon_process_options => {
-          'processes'    => params[:wsgi_processes],
-          'threads'      => params[:wsgi_threads],
+          'processes'    => facts[:os_workers],
+          'threads'      => '1',
           'user'         => 'myuser',
           'group'        => platforms_params[:unix_group],
           'display-name' => 'horizon',
@@ -492,7 +492,8 @@ describe 'horizon::wsgi::apache' do
 
         facts.merge!(OSDefaults.get_facts({
           :fqdn           => 'some.host.tld',
-          :concat_basedir => '/var/lib/puppet/concat'
+          :concat_basedir => '/var/lib/puppet/concat',
+          :os_workers     => '6'
         }))
       end