diff --git a/brozzler/chrome.py b/brozzler/chrome.py
index af6bf5a..28ea507 100644
--- a/brozzler/chrome.py
+++ b/brozzler/chrome.py
@@ -166,7 +166,7 @@ class Chrome:
                 '--disable-background-networking',
                 '--disable-renderer-backgrounding', '--disable-hang-monitor',
                 '--disable-background-timer-throttling', '--mute-audio',
-                '--disable-web-sockets', '--disable-cache', '--single-process',
+                '--disable-web-sockets', '--disable-cache',
                 '--window-size=1100,900', '--no-default-browser-check',
                 '--disable-first-run-ui', '--no-first-run',
                 '--homepage=about:blank', '--disable-direct-npapi-requests',
diff --git a/setup.py b/setup.py
index 17cab60..d0f8cff 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ def find_package_data(package):
 
 setuptools.setup(
         name='brozzler',
-        version='1.5.dev310',
+        version='1.5.dev311',
         description='Distributed web crawling with browsers',
         url='https://github.com/internetarchive/brozzler',
         author='Noah Levitt',