diff --git a/backend/requirements.txt b/backend/requirements.txt
index 03eeba2a1eb..64854d588ea 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -70,7 +70,7 @@ einops==0.8.1
 
 
 ftfy==6.2.3
-pypdf==4.3.1
+pypdf==6.1.3
 fpdf2==2.8.2
 pymdown-extensions==10.14.2
 docx2txt==0.8