diff --git a/Dockerfile b/Dockerfile
index 25e0835..4ac629c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -93,6 +93,10 @@ FROM base AS archivematica-acceptance-tests
 ARG USER_ID=1000
 ARG GROUP_ID=1000
 
+ENV SE_MANAGER_PATH=${SELENIUM_DIR}/bin/selenium-manager
+ENV SE_CHROME_PATH=${SELENIUM_DIR}/bin/google-chrome
+ENV SE_FIREFOX_PATH=${SELENIUM_DIR}/bin/firefox
+
 RUN set -ex \
 	&& apt-get -qqy update \
 	&& apt-get -qqy --no-install-recommends install \
diff --git a/amuser/selenium_ability.py b/amuser/selenium_ability.py
index d4c22ab..45e6d5f 100644
--- a/amuser/selenium_ability.py
+++ b/amuser/selenium_ability.py
@@ -39,7 +39,7 @@ def get_driver(self):
         if self.driver_name == "Chrome":
             options = webdriver.ChromeOptions()
             if headless:
-                options.add_argument("--headless=new")
+                options.add_argument("--headless=old")
             driver = webdriver.Chrome(options=options)
             driver.set_window_size(1700, 900)
         elif self.driver_name == "Firefox":
diff --git a/simplebrowsertest.py b/simplebrowsertest.py
index 7459ba1..ded54be 100755
--- a/simplebrowsertest.py
+++ b/simplebrowsertest.py
@@ -8,7 +8,7 @@
 
 def get_chrome_driver():
     options = webdriver.ChromeOptions()
-    options.add_argument("--headless")
+    options.add_argument("--headless=old")
     driver = webdriver.Chrome(options=options)
     return driver