diff --git a/src/composer.json b/src/composer.json
index 7e3e929..28880d0 100644
--- a/src/composer.json
+++ b/src/composer.json
@@ -24,6 +24,7 @@
         "drupal/insert": "2.x-dev@dev",
         "drupal/paragraphs": "^1.12",
         "drupal/redirect_after_login": "^2.7",
+        "drupal/taxonomy_unique": "^2.3",
         "drupal/typed_data": "1.x-dev@dev",
         "drupal/views_autocomplete_filters": "^1.3",
         "kint-php/kint": "^3.3",
diff --git a/src/composer.lock b/src/composer.lock
index 16d6165..54e9278 100644
--- a/src/composer.lock
+++ b/src/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "59be9916db252189be036d7363f0bd50",
+    "content-hash": "ba8509570e549c6b9c926cbc9d83b5de",
     "packages": [
         {
             "name": "alchemy/zippy",
@@ -7484,6 +7484,76 @@
             },
             "time": "2020-12-11T23:17:33+00:00"
         },
+        {
+            "name": "drupal/taxonomy_unique",
+            "version": "2.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://git.drupalcode.org/project/taxonomy_unique.git",
+                "reference": "8.x-2.3"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://ftp.drupal.org/files/projects/taxonomy_unique-8.x-2.3.zip",
+                "reference": "8.x-2.3",
+                "shasum": "550d06d5b9c670538b93e0aa31b43b4eb1a76f7e"
+            },
+            "require": {
+                "drupal/core": "^8 || ^9"
+            },
+            "require-dev": {
+                "drupal/coder": "^8.3.6",
+                "squizlabs/php_codesniffer": "^3.4.1"
+            },
+            "type": "drupal-module",
+            "extra": {
+                "drupal": {
+                    "version": "8.x-2.3",
+                    "datestamp": "1591087096",
+                    "security-coverage": {
+                        "status": "covered",
+                        "message": "Covered by Drupal's security advisory policy"
+                    }
+                }
+            },
+            "notification-url": "https://packages.drupal.org/8/downloads",
+            "scripts": {
+                "post-install-cmd": [
+                    "./vendor/bin/phpcs --config-set installed_paths ../../drupal/coder/coder_sniffer",
+                    "./vendor/bin/phpcs --config-set show_progress 1"
+                ],
+                "post-update-cmd": [
+                    "./vendor/bin/phpcs --config-set installed_paths ../../drupal/coder/coder_sniffer",
+                    "./vendor/bin/phpcs --config-set show_progress 1"
+                ],
+                "phpcs": [
+                    "./vendor/bin/phpcs --standard=Drupal,DrupalPractice ./ --ignore=./vendor"
+                ],
+                "phpcbf": [
+                    "./vendor/bin/phpcbf --standard=Drupal,DrupalPractice ./ --ignore=./vendor"
+                ]
+            },
+            "license": [
+                "GPL-2.0+"
+            ],
+            "authors": [
+                {
+                    "name": "Rafael Schally",
+                    "homepage": "https://www.drupal.org/user/856550",
+                    "email": "rafael.schally@gmail.com"
+                }
+            ],
+            "description": "Checks for duplicate occurrences of term names.",
+            "homepage": "https://www.drupal.org/project/taxonomy_unique",
+            "keywords": [
+                "drupal",
+                "taxonomy",
+                "ui"
+            ],
+            "support": {
+                "source": "https://git.drupalcode.org/project/taxonomy_unique"
+            }
+        },
         {
             "name": "drupal/token",
             "version": "1.9.0",
diff --git a/src/config/sync/core.extension.yml b/src/config/sync/core.extension.yml
index acd8af3..1c65dcf 100644
--- a/src/config/sync/core.extension.yml
+++ b/src/config/sync/core.extension.yml
@@ -100,6 +100,7 @@ module:
   smtp: 0
   system: 0
   taxonomy: 0
+  taxonomy_unique: 0
   telephone: 0
   text: 0
   token: 0
diff --git a/src/config/sync/taxonomy_unique.settings.yml b/src/config/sync/taxonomy_unique.settings.yml
new file mode 100644
index 0000000..6a8d5ab
--- /dev/null
+++ b/src/config/sync/taxonomy_unique.settings.yml
@@ -0,0 +1,8 @@
+famille: 1
+famille_message: 'Term %term already exists in vocabulary %vocabulary.'
+tag: 1
+tag_message: 'Term %term already exists in vocabulary %vocabulary.'
+tag_prod: 1
+tag_prod_message: 'Term %term already exists in vocabulary %vocabulary.'
+auteurs: 1
+auteurs_message: 'Term %term already exists in vocabulary %vocabulary.'
diff --git a/src/config/sync/views.view.admin_taxo.yml b/src/config/sync/views.view.admin_taxo.yml
index 0a4d7ad..1287cd8 100644
--- a/src/config/sync/views.view.admin_taxo.yml
+++ b/src/config/sync/views.view.admin_taxo.yml
@@ -2,6 +2,8 @@ uuid: 54d387f0-a1b6-456f-883b-624a8697cf25
 langcode: fr
 status: true
 dependencies:
+  config:
+    - taxonomy.vocabulary.auteurs
   module:
     - taxonomy
     - text
@@ -577,7 +579,49 @@ display:
           entity_type: taxonomy_term
           entity_field: changed
           plugin_id: field
-      filters: {  }
+      filters:
+        vid:
+          id: vid
+          table: taxonomy_term_field_data
+          field: vid
+          relationship: none
+          group_type: group
+          admin_label: ''
+          operator: in
+          value:
+            auteurs: auteurs
+          group: 1
+          exposed: false
+          expose:
+            operator_id: ''
+            label: ''
+            description: ''
+            use_operator: false
+            operator: ''
+            operator_limit_selection: false
+            operator_list: {  }
+            identifier: ''
+            required: false
+            remember: false
+            multiple: false
+            remember_roles:
+              authenticated: authenticated
+            reduce: false
+          is_grouped: false
+          group_info:
+            label: ''
+            description: ''
+            identifier: ''
+            optional: true
+            widget: select
+            multiple: false
+            remember: false
+            default_group: All
+            default_group_multiple: {  }
+            group_items: {  }
+          entity_type: taxonomy_term
+          entity_field: vid
+          plugin_id: bundle
       sorts: {  }
       title: 'admin taxo auteurs'
       header: