diff --git a/manifests/wsgi/apache.pp b/manifests/wsgi/apache.pp
index 976b07de..dd695ddc 100644
--- a/manifests/wsgi/apache.pp
+++ b/manifests/wsgi/apache.pp
@@ -50,7 +50,7 @@
 #
 #   [*threads*]
 #     (optional) The number of threads for the vhost.
-#     Defaults to 1
+#     Defaults to 15
 #
 #   [*wsgi_process_display_name*]
 #     (optional) Name of the WSGI process display-name.
@@ -112,7 +112,7 @@ class ironic::wsgi::apache (
   $ssl_crl                     = undef,
   $ssl_certs_dir               = undef,
   $wsgi_process_display_name   = undef,
-  $threads                     = 1,
+  $threads                     = 15,
   $priority                    = '10',
   $access_log_file             = false,
   $access_log_format           = false,
diff --git a/releasenotes/notes/update-threads-to-match-upstream-6fda517d7f6d1448.yaml b/releasenotes/notes/update-threads-to-match-upstream-6fda517d7f6d1448.yaml
new file mode 100644
index 00000000..bea42f27
--- /dev/null
+++ b/releasenotes/notes/update-threads-to-match-upstream-6fda517d7f6d1448.yaml
@@ -0,0 +1,9 @@
+---
+fixes:
+  - |
+    Fixes default configuration where only a single concurrent thread was
+    permitted per WSGI worker process, which does not match the upstream
+    configuration where threads are enabled per each spawned worker process.
+    This allows for greater request concurrency to prevent situations where
+    the webserver may incorrectly return a 500 error due to the server being
+    unable to process the request in time.
diff --git a/spec/classes/ironic_wsgi_apache_spec.rb b/spec/classes/ironic_wsgi_apache_spec.rb
index ed2b118a..4c15b2a8 100644
--- a/spec/classes/ironic_wsgi_apache_spec.rb
+++ b/spec/classes/ironic_wsgi_apache_spec.rb
@@ -14,7 +14,7 @@ describe 'ironic::wsgi::apache' do
         :path                        => '/',
         :servername                  => facts[:fqdn],
         :ssl                         => true,
-        :threads                     => 1,
+        :threads                     => 15,
         :user                        => 'ironic',
         :workers                     => facts[:os_workers],
         :wsgi_daemon_process         => 'ironic',
@@ -56,7 +56,7 @@ describe 'ironic::wsgi::apache' do
         :path                        => '/',
         :servername                  => 'dummy.host',
         :ssl                         => false,
-        :threads                     => 1,
+        :threads                     => 15,
         :user                        => 'ironic',
         :workers                     => 37,
         :wsgi_daemon_process         => 'ironic',