diff --git a/test/acceptance/server.py b/test/acceptance/server.py
index cb7b8cb..23fd082 100755
--- a/test/acceptance/server.py
+++ b/test/acceptance/server.py
@@ -2,6 +2,7 @@
 
 from aas_test_engines import api
 import os
+import shutil
 import subprocess
 import atexit
 import requests
@@ -11,8 +12,16 @@
 HOST = 'http://localhost:5001'
 script_dir = os.path.dirname(os.path.realpath(__file__))
 
+test_data_dir = os.path.join(script_dir, '..', '..', 'bin', 'check_servers', 'test_data')
+runner_temp = os.environ.get('RUNNER_TEMP', None)
+if runner_temp:
+    # In Github actions, only certain directories can be mounted
+    runner_temp = os.path.join(runner_temp, 'test_data')
+    print(f"Copy '{test_data_dir}' to '{runner_temp}'")
+    shutil.copytree(test_data_dir, runner_temp)
+    test_data_dir = runner_temp
 
-def wait_for_server(url: str, max_tries=30):
+def wait_for_server(url: str, max_tries=10):
     for _ in range(max_tries):
         try:
             requests.get(url, verify=False)
@@ -24,14 +33,12 @@ def wait_for_server(url: str, max_tries=30):
     print(f"Cannot reach server at {url}")
 
 
-def start_server() -> str:
-    test_data_dir = os.path.join(script_dir, '..', '..', 'bin', 'check_servers', 'test_data')
+def start_server(test_data_dir: str) -> str:
     container_id = subprocess.check_output([
         'docker', 'run',
         '--publish', '5001:5001',
         '--detach',
-        # In Github actions, only shared volumes are allowed (suffix z)
-        '--volume', f'{test_data_dir}:/AasxServerBlazor/aasxs:z',
+        '--volume', f'{test_data_dir}:/AasxServerBlazor/aasxs',
         'docker.io/adminshellio/aasx-server-blazor-for-demo:main',
     ])
     return container_id.decode().strip()
@@ -50,7 +57,7 @@ def show_server_logs(container_id: str):
     ])
 
 
-container_id = start_server()
+container_id = start_server(test_data_dir)
 atexit.register(lambda: stop_server(container_id))
 wait_for_server(HOST)
 show_server_logs(container_id)