diff --git a/requirements/base.txt b/requirements/base.txt
index 3f2557e..b3f8c0d 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -6,7 +6,7 @@ pypdf>=6.7.5  # PDF utilities - security patches (updated 2026-03-02)
 pandas>=2.2.0  # Data processing
 python-dotenv>=1.0.0  # Environment configuration
 tabulate>=0.9.0  # Table formatting
-cryptography>=46.0.5  # Cryptographic operations - security patches (updated 2026-03-02)
+cryptography>=47.0.0  # Cryptographic operations - security patches (updated 2026-03-02)
 openpyxl>=3.1.0  # Excel export (.xlsx format)
 
 # Note: Network libraries (requests, urllib3) intentionally excluded