diff --git a/frontend/components/client-ticket/ClientTicketDetailModal.vue b/frontend/components/client-ticket/ClientTicketDetailModal.vue
index 20edfdb..cd2a292 100644
--- a/frontend/components/client-ticket/ClientTicketDetailModal.vue
+++ b/frontend/components/client-ticket/ClientTicketDetailModal.vue
@@ -191,7 +191,7 @@
 </template>
 
 <script setup lang="ts">
-import type { ClientTicket } from '~/services/dto/client-ticket'
+import type { ClientTicket, ClientTicketWrite } from '~/services/dto/client-ticket'
 import type { TaskDocument } from '~/services/dto/task-document'
 import { useTaskDocumentService } from '~/services/task-documents'
 import { useClientTicketService } from '~/services/client-tickets'
@@ -243,7 +243,7 @@ const canEdit = computed(() => {
     if (!sub) return false
     // submittedBy can be an IRI string or an embedded object
     if (typeof sub === 'string') return sub === `/api/users/${userId}`
-    if (typeof sub === 'object' && 'id' in sub) return (sub as any).id === userId
+    if (typeof sub === 'object' && 'id' in sub) return (sub as { id: number }).id === userId
     return false
 })
 
@@ -270,7 +270,7 @@ async function saveEdit() {
         if (props.ticket.type === 'bug') {
             data.url = editForm.url || null
         }
-        await clientTicketService.update(props.ticket.id, data as any)
+        await clientTicketService.update(props.ticket.id, data as Partial<ClientTicketWrite>)
         isEditing.value = false
         emit('refresh')
     } finally {
diff --git a/frontend/layouts/default.vue b/frontend/layouts/default.vue
index 3c6f7fb..e6d6ed2 100644
--- a/frontend/layouts/default.vue
+++ b/frontend/layouts/default.vue
@@ -148,6 +148,7 @@ import type { UserData } from '~/services/dto/user-data'
 import type { Project } from '~/services/dto/project'
 import type { TaskTag } from '~/services/dto/task-tag'
 import { useAppVersion } from '~/composables/useAppVersion'
+import type { HydraCollection } from '~/utils/api'
 import { extractHydraMembers } from '~/utils/api'
 
 const auth = useAuthStore()
@@ -211,9 +212,9 @@ async function loadRefData() {
     if (refData.loaded) return
     const api = useApi()
     const [usersData, projectsData, typesData] = await Promise.all([
-        api.get<any>('/users'),
-        api.get<any>('/projects'),
-        api.get<any>('/task_tags'),
+        api.get<HydraCollection<UserData>>('/users'),
+        api.get<HydraCollection<Project>>('/projects'),
+        api.get<HydraCollection<TaskTag>>('/task_tags'),
     ])
     refData.users = extractHydraMembers(usersData)
     refData.projects = extractHydraMembers(projectsData)
diff --git a/frontend/pages/index.vue b/frontend/pages/index.vue
index c20da94..7a6ca72 100644
--- a/frontend/pages/index.vue
+++ b/frontend/pages/index.vue
@@ -471,7 +471,7 @@ const lineOptions = {
         legend: { display: false },
         tooltip: {
             callbacks: {
-                label: (ctx: any) => `${formatHours(ctx.raw)}`,
+                label: (ctx: { raw: unknown }) => `${formatHours(ctx.raw as number)}`,
             },
         },
     },
@@ -480,7 +480,7 @@ const lineOptions = {
             beginAtZero: true,
             grid: { color: '#f3f4f6' },
             ticks: {
-                callback: (value: any) => `${value}h`,
+                callback: (value: number | string) => `${value}h`,
             },
         },
         x: {
diff --git a/frontend/pages/time-tracking.vue b/frontend/pages/time-tracking.vue
index b97e39b..fca8573 100644
--- a/frontend/pages/time-tracking.vue
+++ b/frontend/pages/time-tracking.vue
@@ -126,6 +126,7 @@ import type { UserData } from '~/services/dto/user-data'
 import type { Project } from '~/services/dto/project'
 import type { TaskTag } from '~/services/dto/task-tag'
 import { useTimeEntryService } from '~/services/time-entries'
+import type { HydraCollection } from '~/utils/api'
 import { extractHydraMembers } from '~/utils/api'
 
 useHead({ title: 'Suivi des temps' })
@@ -308,9 +309,9 @@ async function loadReferenceData() {
     const api = useApi()
 
     const [usersData, projectsData, typesData] = await Promise.all([
-        api.get<any>('/users'),
-        api.get<any>('/projects'),
-        api.get<any>('/task_tags'),
+        api.get<HydraCollection<UserData>>('/users'),
+        api.get<HydraCollection<Project>>('/projects'),
+        api.get<HydraCollection<TaskTag>>('/task_tags'),
     ])
 
     users.value = extractHydraMembers(usersData)