diff --git a/src/app/components/portfolio/UploadCsvModal.tsx b/src/app/components/portfolio/UploadCsvModal.tsx
index fa4f6d6b..76378bca 100644
--- a/src/app/components/portfolio/UploadCsvModal.tsx
+++ b/src/app/components/portfolio/UploadCsvModal.tsx
@@ -39,11 +39,17 @@ async function uploadCsvToS3({
   file: File;
 }) {
   try {
-    await fetch(presignedUrl, {
+    const response = await fetch(presignedUrl, {
       method: "PUT",
       body: file,
       headers: { "Content-Type": "text/csv" },
     });
+
+    if (!response.ok) {
+      console.error(response.text);
+      console.error(response);
+      throw new Error("Network response was not ok");
+    }
   } catch (error) {
     console.error(error);
     throw new Error("Upload failed.");