diff --git a/api/ovdashboard_api/dav_calendar.py b/api/ovdashboard_api/dav_calendar.py
index cbe46b2..d47c64c 100644
--- a/api/ovdashboard_api/dav_calendar.py
+++ b/api/ovdashboard_api/dav_calendar.py
@@ -94,7 +94,7 @@ class CalEvent(BaseModel):
         return cls.parse_obj(data)
 
 
-@timed_alru_cache(maxsize=20)
+@timed_alru_cache(maxsize=SETTINGS.cache_size)
 async def _get_calendar(
     calendar_name: str,
 ) -> Calendar:
@@ -109,7 +109,7 @@ async def _get_calendar(
     return await _inner()
 
 
-@timed_alru_cache(maxsize=20)
+@timed_alru_cache(maxsize=SETTINGS.cache_size)
 async def _get_calendar_events(
     calendar_name: str,
 ) -> list[CalEvent]:
diff --git a/api/ovdashboard_api/dav_common.py b/api/ovdashboard_api/dav_common.py
index bcac62c..473ee19 100644
--- a/api/ovdashboard_api/dav_common.py
+++ b/api/ovdashboard_api/dav_common.py
@@ -20,7 +20,7 @@ _WEBDAV_CLIENT = WebDAVclient({
 })
 
 
-@lru_cache
+@lru_cache(maxsize=SETTINGS.cache_size)
 def webdav_resource(remote_path: Any) -> WebDAVResource:
     """
     Gets a resource using the main WebDAV client.
diff --git a/api/ovdashboard_api/dav_file.py b/api/ovdashboard_api/dav_file.py
index 7fc1e11..c6a532b 100644
--- a/api/ovdashboard_api/dav_file.py
+++ b/api/ovdashboard_api/dav_file.py
@@ -18,7 +18,7 @@ from .settings import SETTINGS
 _logger = logging.getLogger(__name__)
 
 
-@timed_alru_cache(maxsize=20)
+@timed_alru_cache(maxsize=SETTINGS.cache_size)
 async def _get_buffer(
     remote_path: Any,
 ) -> BytesIO:
diff --git a/api/ovdashboard_api/settings.py b/api/ovdashboard_api/settings.py
index 3b07198..652b02d 100644
--- a/api/ovdashboard_api/settings.py
+++ b/api/ovdashboard_api/settings.py
@@ -58,6 +58,7 @@ class Settings(BaseSettings):
     caldav: DavSettings = DavSettings()
 
     cache_seconds: int = 30
+    cache_size: int = 30
 
     class Config:
         env_nested_delimiter = "__"