diff --git a/src/app/map/components/time-slider/time-slider.component.ts b/src/app/map/components/time-slider/time-slider.component.ts
index 770e8546b..8ecf54841 100644
--- a/src/app/map/components/time-slider/time-slider.component.ts
+++ b/src/app/map/components/time-slider/time-slider.component.ts
@@ -1,7 +1,7 @@
 import {Component, EventEmitter, Input, OnChanges, OnInit, Output, SimpleChanges} from '@angular/core';
 import {TimeExtent} from '../../interfaces/time-extent.interface';
 import {TimeSliderConfiguration, TimeSliderLayerSource} from '../../../shared/interfaces/topic.interface';
-import {ManipulateType, UnitType} from 'dayjs';
+import {ManipulateTypeAlias as ManipulateType, UnitTypeAlias as UnitType} from '../../../shared/types/dayjs-alias-type';
 import {TimeSliderService} from '../../services/time-slider.service';
 import {TimeExtentUtils} from '../../../shared/utils/time-extent.utils';
 import {MatDatepicker} from '@angular/material/datepicker';
diff --git a/src/app/shared/types/dayjs-alias-type.ts b/src/app/shared/types/dayjs-alias-type.ts
new file mode 100644
index 000000000..b9b2b7fe3
--- /dev/null
+++ b/src/app/shared/types/dayjs-alias-type.ts
@@ -0,0 +1,4 @@
+import {ManipulateType, UnitType} from 'dayjs';
+
+export type ManipulateTypeAlias = ManipulateType;
+export type UnitTypeAlias = UnitType;
diff --git a/src/app/shared/utils/dayjs.utils.ts b/src/app/shared/utils/dayjs.utils.ts
index d42f6d90c..4def7b034 100644
--- a/src/app/shared/utils/dayjs.utils.ts
+++ b/src/app/shared/utils/dayjs.utils.ts
@@ -1,4 +1,5 @@
-import dayjs, {ManipulateType, UnitType} from 'dayjs';
+import dayjs from 'dayjs';
+import {ManipulateTypeAlias as ManipulateType, UnitTypeAlias as UnitType} from '../types/dayjs-alias-type';
 import duration, {Duration} from 'dayjs/plugin/duration';
 import utc from 'dayjs/plugin/utc';
 import customParseFormat from 'dayjs/plugin/customParseFormat';
diff --git a/src/app/shared/utils/time-extent.utils.ts b/src/app/shared/utils/time-extent.utils.ts
index 809efcb76..adbb3f355 100644
--- a/src/app/shared/utils/time-extent.utils.ts
+++ b/src/app/shared/utils/time-extent.utils.ts
@@ -1,5 +1,5 @@
 import {Duration} from 'dayjs/plugin/duration';
-import {ManipulateType} from 'dayjs';
+import {ManipulateTypeAlias as ManipulateType} from '../types/dayjs-alias-type';
 import {TimeSliderConfiguration} from '../interfaces/topic.interface';
 import {TimeExtent} from '../../map/interfaces/time-extent.interface';
 import {DayjsUtils} from './dayjs.utils';