diff --git a/api/ovdashboard_api/async_helpers.py b/api/ovdashboard_api/async_helpers.py
index a4a7ef9..82677df 100644
--- a/api/ovdashboard_api/async_helpers.py
+++ b/api/ovdashboard_api/async_helpers.py
@@ -8,6 +8,8 @@ from time import time
 
 from async_lru import alru_cache
 
+from .settings import SETTINGS
+
 
 def run_in_executor(f):
     """
@@ -27,13 +29,13 @@ def run_in_executor(f):
     return wrapper
 
 
-def get_ttl_hash(seconds: int = 20) -> int:
+def get_ttl_hash() -> int:
     """
     Return the same value within `seconds` time period.
     https://stackoverflow.com/a/55900800
     """
 
-    return round(time() / seconds)
+    return round(time() / SETTINGS.cache_seconds)
 
 
 def timed_alru_cache(*decorator_args, **decorator_kwargs):
diff --git a/api/ovdashboard_api/dav_calendar.py b/api/ovdashboard_api/dav_calendar.py
index 6af3d17..dc7a713 100644
--- a/api/ovdashboard_api/dav_calendar.py
+++ b/api/ovdashboard_api/dav_calendar.py
@@ -183,7 +183,7 @@ class DavCalendar:
         """
 
         return await _get_calendar(
-            ttl_hash=get_ttl_hash(SETTINGS.cache_seconds),
+            ttl_hash=get_ttl_hash(),
             calendar_name=self.calendar_name,
         )
 
@@ -194,6 +194,6 @@ class DavCalendar:
         """
 
         return await _get_calendar_events(
-            ttl_hash=get_ttl_hash(SETTINGS.cache_seconds),
+            ttl_hash=get_ttl_hash(),
             calendar_name=self.calendar_name,
         )
diff --git a/api/ovdashboard_api/dav_file.py b/api/ovdashboard_api/dav_file.py
index c6a532b..4ba7022 100644
--- a/api/ovdashboard_api/dav_file.py
+++ b/api/ovdashboard_api/dav_file.py
@@ -61,7 +61,7 @@ class DavFile:
         """
 
         return await _get_buffer(
-            ttl_hash=get_ttl_hash(SETTINGS.cache_seconds),
+            ttl_hash=get_ttl_hash(),
             remote_path=self.remote_path,
         )