diff --git a/backend/requirements.txt b/backend/requirements.txt
index 5f877f6..eaf23cc 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,11 +1,11 @@
 fastapi>=0.111
 uvicorn[standard]>=0.29
-python-multipart
+python-multipart>=0.0.27
 pydantic-settings>=2.2
 pydantic[email]>=2.0
 anthropic>=0.26
 openai>=1.30
-PyMuPDF>=1.24
+PyMuPDF>=1.26.7
 python-docx>=1.1
 pytesseract>=0.3
 Pillow>=10.3