diff --git a/requirements.txt b/requirements.txt
index e58f522..c229070 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ whitenoise==6.11.0
 
 # PDF and reporting
 reportlab==4.4.4
-pypdf>=3.9.0  # Migrated from PyPDF2 to fix CVE-2023-36464
+pypdf>=6.6.0  # Migrated from PyPDF2 to fix CVE-2023-36464
 
 # HTTP and utilities
 requests==2.32.5