diff --git a/src/main/webapp/app/course/tutorial-groups/services/tutorial-group-free-period.service.ts b/src/main/webapp/app/course/tutorial-groups/services/tutorial-group-free-period.service.ts
index fb56af637fad..ab3043e2a722 100644
--- a/src/main/webapp/app/course/tutorial-groups/services/tutorial-group-free-period.service.ts
+++ b/src/main/webapp/app/course/tutorial-groups/services/tutorial-group-free-period.service.ts
@@ -1,5 +1,5 @@
 import { HttpClient, HttpResponse } from '@angular/common/http';
-import { Injectable } from '@angular/core';
+import { Injectable, inject } from '@angular/core';
 import { Observable } from 'rxjs';
 import { convertDateFromServer, toISO8601DateTimeString } from 'app/utils/date.utils';
 import { map } from 'rxjs/operators';
@@ -15,9 +15,9 @@ export class TutorialGroupFreePeriodDTO {
 
 @Injectable({ providedIn: 'root' })
 export class TutorialGroupFreePeriodService {
-    private resourceURL = 'api';
+    private httpClient = inject(HttpClient);
 
-    constructor(private httpClient: HttpClient) {}
+    private resourceURL = 'api';
 
     getOneOfConfiguration(courseId: number, tutorialGroupsConfigurationId: number, tutorialGroupFreePeriodId: number): Observable<EntityResponseType> {
         return this.httpClient
diff --git a/src/main/webapp/app/course/tutorial-groups/services/tutorial-group-session.service.ts b/src/main/webapp/app/course/tutorial-groups/services/tutorial-group-session.service.ts
index 122a98d6ac52..2f37f5e24ff1 100644
--- a/src/main/webapp/app/course/tutorial-groups/services/tutorial-group-session.service.ts
+++ b/src/main/webapp/app/course/tutorial-groups/services/tutorial-group-session.service.ts
@@ -1,5 +1,5 @@
 import { HttpClient, HttpParams, HttpResponse } from '@angular/common/http';
-import { Injectable } from '@angular/core';
+import { Injectable, inject } from '@angular/core';
 import { Observable } from 'rxjs';
 import { convertDateFromServer, toISO8601DateString } from 'app/utils/date.utils';
 import { map } from 'rxjs/operators';
@@ -17,12 +17,10 @@ export class TutorialGroupSessionDTO {
 
 @Injectable({ providedIn: 'root' })
 export class TutorialGroupSessionService {
-    private resourceURL = 'api';
+    private httpClient = inject(HttpClient);
+    private tutorialGroupFreePeriodService = inject(TutorialGroupFreePeriodService);
 
-    constructor(
-        private httpClient: HttpClient,
-        private tutorialGroupFreePeriodService: TutorialGroupFreePeriodService,
-    ) {}
+    private resourceURL = 'api';
 
     getOneOfTutorialGroup(courseId: number, tutorialGroupId: number, sessionId: number) {
         return this.httpClient
diff --git a/src/main/webapp/app/course/tutorial-groups/services/tutorial-groups-configuration.service.ts b/src/main/webapp/app/course/tutorial-groups/services/tutorial-groups-configuration.service.ts
index 96e1d60af650..086122602ae1 100644
--- a/src/main/webapp/app/course/tutorial-groups/services/tutorial-groups-configuration.service.ts
+++ b/src/main/webapp/app/course/tutorial-groups/services/tutorial-groups-configuration.service.ts
@@ -1,5 +1,5 @@
 import { HttpClient, HttpResponse } from '@angular/common/http';
-import { Injectable } from '@angular/core';
+import { Injectable, inject } from '@angular/core';
 import { Observable } from 'rxjs';
 import { convertDateFromServer, toISO8601DateString } from 'app/utils/date.utils';
 import { map } from 'rxjs/operators';
@@ -9,9 +9,9 @@ type EntityResponseType = HttpResponse<TutorialGroupsConfiguration>;
 
 @Injectable({ providedIn: 'root' })
 export class TutorialGroupsConfigurationService {
-    private resourceURL = 'api';
+    private httpClient = inject(HttpClient);
 
-    constructor(private httpClient: HttpClient) {}
+    private resourceURL = 'api';
 
     getOneOfCourse(courseId: number) {
         return this.httpClient
diff --git a/src/main/webapp/app/course/tutorial-groups/services/tutorial-groups.service.ts b/src/main/webapp/app/course/tutorial-groups/services/tutorial-groups.service.ts
index e011c4915199..e51341988010 100644
--- a/src/main/webapp/app/course/tutorial-groups/services/tutorial-groups.service.ts
+++ b/src/main/webapp/app/course/tutorial-groups/services/tutorial-groups.service.ts
@@ -1,5 +1,5 @@
 import { HttpClient, HttpResponse } from '@angular/common/http';
-import { Injectable } from '@angular/core';
+import { Injectable, inject } from '@angular/core';
 import { TutorialGroup } from 'app/entities/tutorial-group/tutorial-group.model';
 import { Observable } from 'rxjs';
 import { StudentDTO } from 'app/entities/student-dto.model';
@@ -15,13 +15,11 @@ type EntityArrayResponseType = HttpResponse<TutorialGroup[]>;
 
 @Injectable({ providedIn: 'root' })
 export class TutorialGroupsService {
-    private resourceURL = 'api';
+    private httpClient = inject(HttpClient);
+    private tutorialGroupSessionService = inject(TutorialGroupSessionService);
+    private tutorialGroupsConfigurationService = inject(TutorialGroupsConfigurationService);
 
-    constructor(
-        private httpClient: HttpClient,
-        private tutorialGroupSessionService: TutorialGroupSessionService,
-        private tutorialGroupsConfigurationService: TutorialGroupsConfigurationService,
-    ) {}
+    private resourceURL = 'api';
 
     getUniqueCampusValues(courseId: number): Observable<HttpResponse<string[]>> {
         return this.httpClient.get<string[]>(`${this.resourceURL}/courses/${courseId}/tutorial-groups/campus-values`, { observe: 'response' });