diff --git a/api/ovdashboard_api/__init__.py b/api/ovdashboard_api/__init__.py
index edeb9eb..4fa6c6e 100644
--- a/api/ovdashboard_api/__init__.py
+++ b/api/ovdashboard_api/__init__.py
@@ -48,6 +48,5 @@ _CALDAV_CLIENT = caldav.DAVClient(
 )
 
 
-@run_in_executor
 def caldav_principal() -> caldav.Principal:
     return _CALDAV_CLIENT.principal()
diff --git a/api/ovdashboard_api/routers/_common.py b/api/ovdashboard_api/routers/_common.py
index b6f47f7..58cc388 100644
--- a/api/ovdashboard_api/routers/_common.py
+++ b/api/ovdashboard_api/routers/_common.py
@@ -37,11 +37,9 @@ class FileNameLister:
 @dataclass(frozen=True)
 class CalendarNameLister:
     async def __call__(self) -> Iterator[str]:
-        principal = await caldav_principal()
-
         return (
             cal.name
-            for cal in principal.calendars()
+            for cal in caldav_principal().calendars()
         )
 
 
diff --git a/api/ovdashboard_api/routers/calendar.py b/api/ovdashboard_api/routers/calendar.py
index dab9de2..55b1ece 100644
--- a/api/ovdashboard_api/routers/calendar.py
+++ b/api/ovdashboard_api/routers/calendar.py
@@ -1,7 +1,6 @@
 from datetime import datetime, timedelta
 from typing import Iterator
 
-import caldav
 from fastapi import APIRouter, Depends, HTTPException, status
 
 from .. import caldav_principal
@@ -39,8 +38,7 @@ async def get_calendar(
     elif len(calendar_names) > 1:
         raise HTTPException(status_code=status.HTTP_409_CONFLICT)
 
-    principal: caldav.Principal = await caldav_principal()
-    calendar = principal.calendar(name=calendar_names[0])
+    calendar = caldav_principal().calendar(name=calendar_names[0])
 
     events = []