diff --git a/requirements.txt b/requirements.txt
index 7d7c121..22804a7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ pydantic>=2.0.0
 slowapi>=0.1.9
 gunicorn>=21.2.0
 
-PyMuPDF>=1.23.0
+PyMuPDF>=1.27.2.3
 google-genai>=0.3.0
 Pillow>=10.0.0