diff --git a/client/src/pages/Artefacts.jsx b/client/src/pages/Artefacts.jsx
index a4389b5..c0f0284 100644
--- a/client/src/pages/Artefacts.jsx
+++ b/client/src/pages/Artefacts.jsx
@@ -710,7 +710,7 @@ function ArtefactDetailPanel({ artefact, onClose, onUpdate, onDelete, projects =
     try {
       const formData = new FormData()
       formData.append('file', file)
-      await api.post(`/artefacts/${artefact.Id}/versions/${selectedVersion.Id}/attachments`, formData)
+      await api.upload(`/artefacts/${artefact.Id}/versions/${selectedVersion.Id}/attachments`, formData)
       toast.success('File uploaded')
       loadVersionData(selectedVersion.Id)
     } catch (err) {