diff --git a/setup.py b/setup.py
index 6f47ba2..28af3e3 100644
--- a/setup.py
+++ b/setup.py
@@ -345,7 +345,7 @@ def is_scanned_pdf(file_path):
         return False
 
 
-def ocr_pdf(file_path, language="tur+eng", dpi=200):
+def ocr_pdf(file_path, language="tur+eng+rus+ara", dpi=200):
     """OCR a scanned PDF in-place. Returns True on success."""
     import tempfile
     tmp_fd, tmp_path = tempfile.mkstemp(suffix=".pdf", dir=file_path.parent)