diff --git a/deploy/aca/scripts/requirements.txt b/deploy/aca/scripts/requirements.txt
index 3512e02..2d6f413 100644
--- a/deploy/aca/scripts/requirements.txt
+++ b/deploy/aca/scripts/requirements.txt
@@ -344,7 +344,7 @@ pyjwt==2.10.1
     #   msal
 pymupdf==1.25.1
     # via -r requirements.in
-pypdf==4.3.1
+pypdf==6.21.4
     # via -r requirements.in
 python-dotenv==1.0.1
     # via