diff --git a/src/main/java/clap/server/common/utils/FileTypeValidator.java b/src/main/java/clap/server/common/utils/FileTypeValidator.java
index 85963d38..2feb7925 100644
--- a/src/main/java/clap/server/common/utils/FileTypeValidator.java
+++ b/src/main/java/clap/server/common/utils/FileTypeValidator.java
@@ -18,6 +18,9 @@ private FileTypeValidator() {
     );
     private static final List<String> VALID_DOCS_TYPES = Arrays.asList(
             "text/csv",
+            "text/plain",
+            "application/csv",
+            "application/octet-stream",
             "application/vnd.ms-excel",
             "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
     );