diff --git a/handlers.go b/handlers.go
index 6fcd0c8..642533d 100644
--- a/handlers.go
+++ b/handlers.go
@@ -74,22 +74,22 @@ func handleUpload(w http.ResponseWriter, r *http.Request) {
 		}
 		defer file.Close()
 
-		dst, err := os.Create(filepath.Join(uploadDir, fileHeader.Filename))
+		tempFile, err := os.CreateTemp(uploadDir, fileHeader.Filename)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
-		defer dst.Close()
+		defer tempFile.Close()
 
-		_, err = io.Copy(dst, file)
+		_, err = io.Copy(tempFile, file)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		uploadedFiles = append(uploadedFiles, fileHeader.Filename)
+		uploadedFiles = append(uploadedFiles, filepath.Base(tempFile.Name()))
 
-		_, err = parseInputFile(dst.Name())
+		_, err = parseInputFile(tempFile.Name())
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return