diff --git a/config/puma.rb b/config/puma.rb
index cf6144d6..f7c087b5 100644
--- a/config/puma.rb
+++ b/config/puma.rb
@@ -2,7 +2,7 @@
 
 require_relative "../lib/app"
 
-workers 2
+workers 0
 threads 1, 16
 
 preload_app!
diff --git a/test/integration/app_boot_test.rb b/test/integration/app_boot_test.rb
index 12e252ef..9c32282b 100644
--- a/test/integration/app_boot_test.rb
+++ b/test/integration/app_boot_test.rb
@@ -63,7 +63,7 @@ def test_app_lowlevel_error_handler
     port = random_free_port
     options = {
       timeout: 5,
-      wait_for: /Worker.+booted/,
+      wait_for: /Listening on http:/,
       env: {
         RACK_ENV: "development",
         TEST_LOWLEVEL_ERROR_HANDLER: true, # adds broken middleware
@@ -84,7 +84,7 @@ def test_app_development_boot
     port = random_free_port
     options = {
       timeout: 5,
-      wait_for: /Worker.+booted/,
+      wait_for: /Listening on http:/,
       env: {
         RACK_ENV: "development",
         REDIRECT_TO_HTTPS: true,
@@ -112,7 +112,7 @@ def test_app_production_boot
     port = random_free_port
     options = {
       timeout: 5,
-      wait_for: /Worker.+booted/,
+      wait_for: /Listening on http:/,
       env: {
         RACK_ENV: "production",
         LOAD_LOCALHOST_SSL: true, # Tell Puma to bind TLS/SSL port, to simulate production