diff --git a/moonraker/components/paneldue.py b/moonraker/components/paneldue.py
index eedd96e..9443d32 100644
--- a/moonraker/components/paneldue.py
+++ b/moonraker/components/paneldue.py
@@ -268,7 +268,8 @@ class PanelDue:
     async def _process_klippy_ready(self) -> None:
         # Request "info" and "configfile" status
         retries = 10
-        printer_info = cfg_status = {}
+        printer_info: Dict[str, Any] = {}
+        cfg_status: Dict[str, Any] = {}
         while retries:
             try:
                 printer_info = await self.klippy_apis.get_klippy_info()
diff --git a/moonraker/components/update_manager/update_manager.py b/moonraker/components/update_manager/update_manager.py
index 84cc1bc..2725b85 100644
--- a/moonraker/components/update_manager/update_manager.py
+++ b/moonraker/components/update_manager/update_manager.py
@@ -708,7 +708,7 @@ class PackageDeploy(BaseDeploy):
         except shell_cmd.error:
             return None
         # APT Command found should be available
-        logging.debug(f"APT package manager detected: {ret.encode()}")
+        logging.debug(f"APT package manager detected: {ret}")
         provider = AptCliProvider(self.cmd_helper)
         try:
             await provider.initialize()
diff --git a/moonraker/confighelper.py b/moonraker/confighelper.py
index 012dd4f..c83d274 100644
--- a/moonraker/confighelper.py
+++ b/moonraker/confighelper.py
@@ -32,12 +32,12 @@ from typing import (
     Dict,
     List,
     Type,
+    TextIO
 )
 if TYPE_CHECKING:
     from .server import Server
     from .components.gpio import GpioFactory, GpioOutputPin
     from .components.template import TemplateFactory
-    from io import TextIOWrapper
     _T = TypeVar("_T")
     ConfigVal = Union[None, int, float, bool, str, dict, list]
 
@@ -468,11 +468,11 @@ class ConfigHelper:
                         "failed to load.  In the future this will result "
                         "in a startup error.")
 
-    def create_backup(self):
+    def create_backup(self) -> None:
         cfg_path = self.server.get_app_args()["config_file"]
         cfg = pathlib.Path(cfg_path).expanduser().resolve()
         backup = cfg.parent.joinpath(f".{cfg.name}.bkp")
-        backup_fp: Optional[TextIOWrapper] = None
+        backup_fp: Optional[TextIO] = None
         try:
             if backup.exists():
                 cfg_mtime: int = 0