diff --git a/services/api.ts b/services/api.ts
index dfb4f2a..99d65ce 100644
--- a/services/api.ts
+++ b/services/api.ts
@@ -29,9 +29,9 @@ async function fetchWithAuth(
     tokenPreview: token ? `${token.substring(0, 20)}...` : 'Aucun',
   });
 
-  const headers: HeadersInit = {
+  const headers: Record<string, string> = {
     'Content-Type': 'application/json',
-    ...options.headers,
+    ...options.headers as Record<string, string>,
   };
 
   if (token) {