diff --git a/requirements/base.txt b/requirements/base.txt
index 3f2557e..8f44a56 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -6,8 +6,8 @@ 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)
-openpyxl>=3.1.0  # Excel export (.xlsx format)
+cryptography>=47.0.0  # Cryptographic operations - security patches (updated 2026-04-29)
+openpyxl>=3.1.5  # Excel export (.xlsx format)
 
 # Note: Network libraries (requests, urllib3) intentionally excluded
 # This application processes sensitive financial data locally only
diff --git a/requirements/ci.txt b/requirements/ci.txt
index eb341d7..90e0e61 100644
--- a/requirements/ci.txt
+++ b/requirements/ci.txt
@@ -6,7 +6,7 @@
 
 # Security scanning
 bandit==1.9.4
-pip-audit>=2.7.0
+pip-audit>=2.10.0
 
 # License compliance
 pip-licenses>=5.0.0
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 5095d42..2e6f09e 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -10,7 +10,7 @@ isort>=8.0.1,<9.0.0
 
 # Linting and Type Checking
 ruff>=0.15.12,<1.0.0
-mypy>=1.8.0,<2.0.0
+mypy>=1.20.2,<2.0.0
 pyright>=1.1.350
 
 # Type stubs (compatible versions)
@@ -29,6 +29,6 @@ pre-commit>=3.0.0,<5.0.0
 
 # Security tools (using compatible versions)
 bandit[toml]>=1.7.0,<2.0.0
-safety>=2.0.0,<4.0.0
-detect-secrets>=1.4.0,<2.0.0
-yamllint>=1.33.0,<2.0.0
\ No newline at end of file
+safety>=3.7.0,<4.0.0
+detect-secrets>=1.5.0,<2.0.0
+yamllint>=1.38.0,<2.0.0
\ No newline at end of file