diff --git a/apiserver/config/default/secure.conf b/apiserver/config/default/secure.conf
index b6d05be..c7c8099 100644
--- a/apiserver/config/default/secure.conf
+++ b/apiserver/config/default/secure.conf
@@ -28,6 +28,7 @@
             display_name: "Default User"
             user_key: "EGRTCO8JMSIGI6S39GTP43NFWXDQOW"
             user_secret: "x!XTov_G-#vspE*Y(h$Anm&DIc5Ou-F)jsl$PdOyj5wG1&E!Z8"
+            revoke_in_fixed_mode: true
         }
     }
 }
\ No newline at end of file
diff --git a/apiserver/tests/automated/requirements.txt b/apiserver/tests/automated/requirements.txt
deleted file mode 100644
index f543eed..0000000
--- a/apiserver/tests/automated/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-parameterized
diff --git a/apiserver/utilities/dicts.py b/apiserver/utilities/dicts.py
index b6c936b..cb5e55a 100644
--- a/apiserver/utilities/dicts.py
+++ b/apiserver/utilities/dicts.py
@@ -1,4 +1,4 @@
-from typing import Sequence, Tuple, Any, Union, Callable, Optional
+from typing import Sequence, Tuple, Any, Union, Callable, Optional, Mapping
 
 
 def flatten_nested_items(
@@ -36,7 +36,7 @@ def deep_merge(source: dict, override: dict) -> dict:
 
 
 def nested_get(
-    dictionary: dict,
+    dictionary: Mapping,
     path: Union[Sequence[str], str],
     default: Optional[Union[Any, Callable]] = None,
 ) -> Any: