diff --git a/acceptance_tests/conftest.py b/acceptance_tests/conftest.py
index b37c89a6..fa45791b 100644
--- a/acceptance_tests/conftest.py
+++ b/acceptance_tests/conftest.py
@@ -17,7 +17,9 @@
 def wait_db():
     timeout = time.time() + 60.0
 
-    conn_string = "host='db' port='5432' dbname='test' user='www-data' password='www-data'"
+    conn_string = (
+        "host='db' port='5432' dbname='test' user='www-data' password='www-data'"
+    )
     while True:
         try:
             LOG.info("Trying to connect to the DB... ")
diff --git a/acceptance_tests/test_landingpage.py b/acceptance_tests/test_landingpage.py
index 43927c21..e8189e89 100644
--- a/acceptance_tests/test_landingpage.py
+++ b/acceptance_tests/test_landingpage.py
@@ -2,7 +2,15 @@
 
 
 def test_langingpage(connection_landingpage):
-    connection_landingpage.get_raw("mapserv_proxy/qgis", cache_expected=CacheExpected.DONT_CARE)
-    connection_landingpage.get_raw("mapserv_proxy/qgis/", cache_expected=CacheExpected.DONT_CARE)
-    connection_landingpage.get_raw("mapserv_proxy/qgis/index.html", cache_expected=CacheExpected.DONT_CARE)
-    connection_landingpage.get_raw("mapserv_proxy/qgis/index.json", cache_expected=CacheExpected.DONT_CARE)
+    connection_landingpage.get_raw(
+        "mapserv_proxy/qgis", cache_expected=CacheExpected.DONT_CARE
+    )
+    connection_landingpage.get_raw(
+        "mapserv_proxy/qgis/", cache_expected=CacheExpected.DONT_CARE
+    )
+    connection_landingpage.get_raw(
+        "mapserv_proxy/qgis/index.html", cache_expected=CacheExpected.DONT_CARE
+    )
+    connection_landingpage.get_raw(
+        "mapserv_proxy/qgis/index.json", cache_expected=CacheExpected.DONT_CARE
+    )
diff --git a/acceptance_tests/test_wms.py b/acceptance_tests/test_wms.py
index 528870bb..416041e1 100644
--- a/acceptance_tests/test_wms.py
+++ b/acceptance_tests/test_wms.py
@@ -6,9 +6,12 @@
 def test_get_capabilities(connection):
     ns = "{http://www.opengis.net/wms}"
     answer = connection.get_xml(
-        "?SERVICE=WMS&REQUEST=GetCapabilities&VERSION=1.3.0", cache_expected=CacheExpected.DONT_CARE
+        "?SERVICE=WMS&REQUEST=GetCapabilities&VERSION=1.3.0",
+        cache_expected=CacheExpected.DONT_CARE,
     )
-    assert [e.text for e in answer.findall(f"{ns}Service/{ns}Title")] == ["test"], ElementTree.dump(answer)
+    assert [e.text for e in answer.findall(f"{ns}Service/{ns}Title")] == [
+        "test"
+    ], ElementTree.dump(answer)
     assert [e.text for e in answer.findall(f".//{ns}Layer/{ns}Name")] == [
         "test",
         "polygons",