diff --git a/backend/requirements.txt b/backend/requirements.txt
index 6ef0c46..9256ec2 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -41,7 +41,7 @@ pydantic_core==2.20.0
 PyJWT==2.8.0
 pymongo==4.7.3
 PyMuPDF==1.24.6
-PyMuPDFb==1.24.3
+PyMuPDFb==1.24.6
 pyparsing==3.1.2
 PyPDF2==3.0.1
 pypdfium2==4.30.0