diff --git a/ocr-service/requirements.txt b/ocr-service/requirements.txt
index 17028f83..befaafcb 100644
--- a/ocr-service/requirements.txt
+++ b/ocr-service/requirements.txt
@@ -8,4 +8,5 @@ pillow>=10.2.0,<11.0.0
 pypdfium2==4.30.0
 pyvips>=2.2.0
 httpx==0.28.1
+pyspellchecker==0.9.0
 opencv-python-headless==4.11.0.86