diff --git a/app/src/store/data.js b/app/src/store/data.js
index 9edbd216..c868490e 100644
--- a/app/src/store/data.js
+++ b/app/src/store/data.js
@@ -1,5 +1,3 @@
-import Vue from 'vue'
-
 import api from '@/api'
 import { isEmptyValue } from '@/helpers/commons'
 import { stratify } from '@/helpers/data/tree'
@@ -34,7 +32,7 @@ export default {
     },
 
     SET_DOMAINS_DETAILS(state, [name, details]) {
-      Vue.set(state.domains_details, name, details)
+      state.domains_details[name] = details
     },
 
     UPDATE_DOMAINS_DETAILS(state, payload) {
@@ -43,9 +41,9 @@ export default {
     },
 
     DEL_DOMAINS_DETAILS(state, [name]) {
-      Vue.delete(state.domains_details, name)
+      delete state.domains_details[name]
       if (state.domains) {
-        Vue.delete(state.domains, name)
+        delete state.domains[name]
       }
     },
 
@@ -72,16 +70,16 @@ export default {
 
     ADD_USERS(state, [user]) {
       if (!state.users) state.users = {}
-      Vue.set(state.users, user.username, user)
+      state.users[user.username] = user
     },
 
     SET_USERS_DETAILS(state, [username, userData]) {
-      Vue.set(state.users_details, username, userData)
+      state.users_details[username] = userData
       if (!state.users) return
       const user = state.users[username]
       for (const key of ['fullname', 'mail']) {
         if (user[key] !== userData[key]) {
-          Vue.set(user, key, userData[key])
+          user[key] = userData[key]
         }
       }
     },
@@ -92,9 +90,9 @@ export default {
     },
 
     DEL_USERS_DETAILS(state, [username]) {
-      Vue.delete(state.users_details, username)
+      delete state.users_details[username]
       if (state.users) {
-        Vue.delete(state.users, username)
+        delete state.users[username]
         if (Object.keys(state.users).length === 0) {
           state.users = null
         }
@@ -107,16 +105,16 @@ export default {
 
     ADD_GROUPS(state, [{ name }]) {
       if (state.groups !== undefined) {
-        Vue.set(state.groups, name, { members: [], permissions: [] })
+        state.groups[name] = { members: [], permissions: [] }
       }
     },
 
     UPDATE_GROUPS(state, [data, { groupName }]) {
-      Vue.set(state.groups, groupName, data)
+      state.groups[groupName] = data
     },
 
     DEL_GROUPS(state, [groupname]) {
-      Vue.delete(state.groups, groupname)
+      delete state.groups[groupname]
     },
 
     SET_PERMISSIONS(state, [permissions]) {
diff --git a/app/src/store/info.js b/app/src/store/info.js
index fc6698bc..1d92b539 100644
--- a/app/src/store/info.js
+++ b/app/src/store/info.js
@@ -1,4 +1,3 @@
-import Vue from 'vue'
 import router from '@/router'
 import i18n from '@/i18n'
 import api from '@/api'
@@ -55,7 +54,7 @@ export default {
 
     UPDATE_REQUEST(state, { request, key, value }) {
       // This rely on data persistance and reactivity.
-      Vue.set(request, key, value)
+      request[key] = value
     },
 
     REMOVE_REQUEST(state, request) {
@@ -303,7 +302,7 @@ export default {
         // the ownership to stay generic.
         const request = error.request
         delete error.request
-        Vue.set(request, 'error', error)
+        request.error = error
         // Display the error in a modal on the current view.
         commit('SET_ERROR', request)
       }
@@ -330,7 +329,7 @@ export default {
 
     DISMISS_WARNING({ commit, state }, request) {
       commit('SET_WAITING', false)
-      Vue.delete(request, 'showWarningMessage')
+      delete request.showWarningMessage
     },
 
     UPDATE_ROUTER_KEY({ commit }, { to, from }) {
diff --git a/app/src/views/app/AppInfo.vue b/app/src/views/app/AppInfo.vue
index 2bf5e636..a2facae3 100644
--- a/app/src/views/app/AppInfo.vue
+++ b/app/src/views/app/AppInfo.vue
@@ -629,7 +629,9 @@ export default {
             Object.assign(this.externalResults, {
               forms: { [panel.id]: { [err.data.name]: [err.data.error] } },
             })
-          } else this.$set(panel, 'serverError', err.message)
+          } else {
+            panel.serverError = err.message
+          }
         })
     },
 
diff --git a/app/src/views/domain/DomainInfo.vue b/app/src/views/domain/DomainInfo.vue
index e37a75b6..630f9279 100644
--- a/app/src/views/domain/DomainInfo.vue
+++ b/app/src/views/domain/DomainInfo.vue
@@ -257,7 +257,9 @@ export default {
             Object.assign(this.externalResults, {
               forms: { [panel.id]: { [err.data.name]: [err.data.error] } },
             })
-          } else this.$set(panel, 'serverError', err.message)
+          } else {
+            panel.serverError = err.message
+          }
         })
     },
 
diff --git a/app/src/views/group/GroupList.vue b/app/src/views/group/GroupList.vue
index 92be1db0..3b2d9afb 100644
--- a/app/src/views/group/GroupList.vue
+++ b/app/src/views/group/GroupList.vue
@@ -133,8 +133,6 @@
 </template>
 
 <script>
-import Vue from 'vue'
-
 import api from '@/api'
 import { isEmptyValue } from '@/helpers/commons'
 import TagsSelectizeItem from '@/components/globals/formItems/TagsSelectizeItem.vue'
@@ -325,7 +323,7 @@ export default {
           { key: 'groups.delete', name: groupName },
         )
         .then(() => {
-          Vue.delete(this.primaryGroups, groupName)
+          delete this.primaryGroups[groupName]
         })
     },
   },
diff --git a/app/src/views/tool/ToolFirewall.vue b/app/src/views/tool/ToolFirewall.vue
index 7e81e71f..371da98b 100644
--- a/app/src/views/tool/ToolFirewall.vue
+++ b/app/src/views/tool/ToolFirewall.vue
@@ -270,13 +270,13 @@ export default {
     },
 
     onTablePortToggling(port, protocol, connection, index, value) {
-      this.$set(this.protocols[protocol][index], connection, value)
+      this.protocols[protocol][index][connection] = value
       const action = value ? 'allow' : 'disallow'
       this.togglePort({ action, port, protocol, connection }).then(
         (toggled) => {
           // Revert change on cancel
           if (!toggled) {
-            this.$set(this.protocols[protocol][index], connection, !value)
+            this.protocols[protocol][index][connection] = !value
           }
         },
       )
diff --git a/app/src/views/tool/ToolMigrations.vue b/app/src/views/tool/ToolMigrations.vue
index 98fbec3e..5210855a 100644
--- a/app/src/views/tool/ToolMigrations.vue
+++ b/app/src/views/tool/ToolMigrations.vue
@@ -112,7 +112,7 @@ export default {
       pending.forEach((migration) => {
         if (migration.disclaimer) {
           migration.disclaimer = migration.disclaimer.replaceAll('\n', '<br>')
-          this.$set(this.checked, migration.id, null)
+          this.checked[migration.id] = null
         }
       })
       // FIXME change to pending
diff --git a/app/src/views/tool/ToolSettings.vue b/app/src/views/tool/ToolSettings.vue
index c1be632d..4e71fa27 100644
--- a/app/src/views/tool/ToolSettings.vue
+++ b/app/src/views/tool/ToolSettings.vue
@@ -68,7 +68,9 @@ export default {
             Object.assign(this.externalResults, {
               forms: { [panel.id]: { [err.data.name]: [err.data.error] } },
             })
-          } else this.$set(panel, 'serverError', err.message)
+          } else {
+            panel.serverError = err.message
+          }
         })
     },
   },