diff --git a/tasks/components/cards/TaskCard.tsx b/tasks/components/cards/TaskCard.tsx
index 07ef073aa..82881e0f4 100644
--- a/tasks/components/cards/TaskCard.tsx
+++ b/tasks/components/cards/TaskCard.tsx
@@ -10,6 +10,7 @@ import { Avatar } from '../Avatar'
 import type { Languages } from '@helpwave/common/hooks/useLanguage'
 import type { PropsWithLanguage } from '@helpwave/common/hooks/useTranslation'
 import { useTranslation } from '@helpwave/common/hooks/useTranslation'
+import { useUserQuery } from '../../mutations/user_mutations';
 
 type TaskCardTranslation = {
   assigned: string
@@ -41,10 +42,7 @@ export const TaskCard = ({
   const progress = task.subtasks.length === 0 ? 1 : task.subtasks.filter(value => value.isDone).length / task.subtasks.length
   const isOverDue = task.dueDate && task.dueDate < new Date() && task.status !== TaskStatus.TASK_STATUS_DONE
 
-  // TODO replace by user avatar
-  // Fetch for specific assignee https://github.com/helpwave/services/blob/c1c88ebaad136aef92954bf774b1e89c6a10d97f/services/user-svc/internal/models/user_models.go#L7
-  const tempURL = 'https://source.boringavatars.com/marble/128/'
-  const hasAssignee = !!task.assignee && task.assignee !== '00000000-0000-0000-0000-000000000000'
+  const { data: assignee } = useUserQuery(task.assignee)
 
   return (
     <Card
@@ -66,7 +64,7 @@ export const TaskCard = ({
           </Span>
         </div>
         <div className={tw('flex flex-col gap-y-1 w-[24px]')}>
-          {hasAssignee && <Avatar avatarUrl={tempURL} alt={translation.assigned} size="tiny"/>}
+          {assignee && <Avatar avatarUrl={assignee.avatarUrl} alt={translation.assigned} size="tiny"/>}
           {task.subtasks.length > 0 && (
             <ProgressIndicator progress={progress}/>
           )}
diff --git a/tasks/mutations/user_mutations.ts b/tasks/mutations/user_mutations.ts
new file mode 100644
index 000000000..e2a214639
--- /dev/null
+++ b/tasks/mutations/user_mutations.ts
@@ -0,0 +1,23 @@
+import { useQuery } from '@tanstack/react-query'
+import { ReadPublicProfileRequest } from '@helpwave/proto-ts/proto/services/user_svc/v1/user_svc_pb'
+import { getAuthenticatedGrpcMetadata, userService } from '../utils/grpc'
+
+const userQueryKey = 'user'
+
+export const useUserQuery = (userId: string|undefined) => {
+  const enabled = !!userId && userId !== '00000000-0000-0000-0000-000000000000'
+  return useQuery({
+    queryKey: [userQueryKey, userId],
+    enabled,
+    staleTime: 5 * 60 * 1000, // 5 minutes
+    cacheTime: 30 * 60 * 1000, // 30 minutes
+    queryFn: async () => {
+      if (!enabled || !userId) return
+      const req = new ReadPublicProfileRequest()
+      req.setId(userId)
+
+      const res = await userService.readPublicProfile(req, getAuthenticatedGrpcMetadata())
+      return res.toObject()
+    },
+  })
+}
diff --git a/tasks/utils/grpc.ts b/tasks/utils/grpc.ts
index 9da8505e8..d27cee559 100644
--- a/tasks/utils/grpc.ts
+++ b/tasks/utils/grpc.ts
@@ -10,6 +10,7 @@ import {
 import { TaskServicePromiseClient } from '@helpwave/proto-ts/proto/services/task_svc/v1/task_svc_grpc_web_pb'
 import { OrganizationServicePromiseClient } from '@helpwave/proto-ts/proto/services/user_svc/v1/organization_svc_grpc_web_pb'
 import { getConfig } from './config'
+import { UserServicePromiseClient } from '@helpwave/proto-ts/proto/services/user_svc/v1/user_svc_grpc_web_pb';
 
 const taskSvcBaseUrl = `${getConfig().apiUrl}/task-svc`
 const userSvcBaseUrl = `${getConfig().apiUrl}/user-svc`
@@ -22,6 +23,7 @@ export const patientService = new PatientServicePromiseClient(taskSvcBaseUrl)
 export const taskTemplateService = new TaskTemplateServicePromiseClient(taskSvcBaseUrl)
 export const taskService = new TaskServicePromiseClient(taskSvcBaseUrl)
 export const organizationService = new OrganizationServicePromiseClient(userSvcBaseUrl)
+export const userService = new UserServicePromiseClient(userSvcBaseUrl)
 
 type AuthenticatedGrpcMetadata = {
   Authorization: string,