diff --git a/assets/vue/app/domain/setting/infrastructure/api/apiContentSourceRepository.js b/assets/vue/app/domain/setting/infrastructure/api/apiContentSourceRepository.js
index e5a395a..9739da8 100644
--- a/assets/vue/app/domain/setting/infrastructure/api/apiContentSourceRepository.js
+++ b/assets/vue/app/domain/setting/infrastructure/api/apiContentSourceRepository.js
@@ -75,9 +75,7 @@ export class ApiContentSourceRepository {
      */
     async import(contentSources) {
         try {
-            const response = await this.apiClient.post('/content-sources/import', {
-                contentSources
-            });
+            const response = await this.apiClient.post('/content-sources/import', contentSources);
             return response.data;
         } catch (error) {
             throw new Error(error.response?.data?.message || 'Erreur lors de l\'import des sources');
diff --git a/src/Domain/Setting/Application/CommandHandler/ImportContentSourceCommandHandler.php b/src/Domain/Setting/Application/CommandHandler/ImportContentSourceCommandHandler.php
index 200825f..08d7e6f 100644
--- a/src/Domain/Setting/Application/CommandHandler/ImportContentSourceCommandHandler.php
+++ b/src/Domain/Setting/Application/CommandHandler/ImportContentSourceCommandHandler.php
@@ -20,28 +20,40 @@ readonly class ImportContentSourceCommandHandler
             throw new InvalidArgumentException('Content sources must be an array');
         }
 
-        $contentSourcesToImport = [];
-
         foreach ($command->contentSources as $data) {
             if (!$this->isValidContentSourceData($data)) {
                 throw new InvalidArgumentException('Invalid content source data provided');
             }
 
-            $contentSource = ContentSource::create(
-                baseUrl: $data['baseUrl'],
-                chapterUrlFormat: $data['chapterUrlFormat'],
-                scrapingType: $data['scrapingType'],
-                imageSelector: $data['imageSelector'] ?? null,
-                nextPageSelector: $data['nextPageSelector'] ?? null,
-                chapterSelector: $data['chapterSelector'] ?? null,
-            );
+            // Recherche d'une source existante avec la même baseUrl
+            $existingContentSource = $this->contentSourceRepository->findByBaseUrl($data['baseUrl']);
 
-            $contentSourcesToImport[] = $contentSource;
+            if ($existingContentSource) {
+                // Met à jour la source existante
+                $existingContentSource->update(
+                    baseUrl: $data['baseUrl'],
+                    chapterUrlFormat: $data['chapterUrlFormat'],
+                    scrapingType: $data['scrapingType'],
+                    imageSelector: $data['imageSelector'] ?? null,
+                    nextPageSelector: $data['nextPageSelector'] ?? null,
+                    chapterSelector: $data['chapterSelector'] ?? null,
+                );
+
+                $this->contentSourceRepository->save($existingContentSource);
+            } else {
+                // Crée une nouvelle source
+                $newContentSource = ContentSource::create(
+                    baseUrl: $data['baseUrl'],
+                    chapterUrlFormat: $data['chapterUrlFormat'],
+                    scrapingType: $data['scrapingType'],
+                    imageSelector: $data['imageSelector'] ?? null,
+                    nextPageSelector: $data['nextPageSelector'] ?? null,
+                    chapterSelector: $data['chapterSelector'] ?? null,
+                );
+
+                $this->contentSourceRepository->save($newContentSource);
+            }
         }
-
-        // Supprime tous les content sources existants puis importe les nouveaux
-        $this->contentSourceRepository->deleteAll();
-        $this->contentSourceRepository->saveMultiple($contentSourcesToImport);
     }
 
     private function isValidContentSourceData(mixed $data): bool
diff --git a/src/Domain/Setting/Domain/Contract/Repository/ContentSourceRepositoryInterface.php b/src/Domain/Setting/Domain/Contract/Repository/ContentSourceRepositoryInterface.php
index b120a53..f965965 100644
--- a/src/Domain/Setting/Domain/Contract/Repository/ContentSourceRepositoryInterface.php
+++ b/src/Domain/Setting/Domain/Contract/Repository/ContentSourceRepositoryInterface.php
@@ -8,6 +8,7 @@ interface ContentSourceRepositoryInterface
 {
     public function findAll(): array;
     public function findById(int $id): ?ContentSource;
+    public function findByBaseUrl(string $baseUrl): ?ContentSource;
     public function save(ContentSource $contentSource): void;
     public function delete(ContentSource $contentSource): void;
     public function deleteAll(): void;
diff --git a/src/Domain/Setting/Infrastructure/Persistence/Repository/DoctrineContentSourceRepository.php b/src/Domain/Setting/Infrastructure/Persistence/Repository/DoctrineContentSourceRepository.php
index e17230e..a613655 100644
--- a/src/Domain/Setting/Infrastructure/Persistence/Repository/DoctrineContentSourceRepository.php
+++ b/src/Domain/Setting/Infrastructure/Persistence/Repository/DoctrineContentSourceRepository.php
@@ -32,6 +32,14 @@ readonly class DoctrineContentSourceRepository implements ContentSourceRepositor
         return $entity ? $this->mapper->toDomain($entity) : null;
     }
 
+    public function findByBaseUrl(string $baseUrl): ?ContentSource
+    {
+        $entity = $this->entityManager->getRepository(ContentSourceEntity::class)
+            ->findOneBy(['baseUrl' => $baseUrl]);
+
+        return $entity ? $this->mapper->toDomain($entity) : null;
+    }
+
     public function save(ContentSource $contentSource): void
     {
         if ($contentSource->getId()) {