diff --git a/pyproject.toml b/pyproject.toml
index 2deebd8..9ba41b2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ dev = [
     # Type checking
     "mypy>=1.16.1",
     # Security
-    "bandit[toml]>=1.8.0",
+    "bandit[toml]>=1.9.4",
     # Testing
     "pytest>=8.4.1",
     "pytest-cov>=6.2.0",
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 5686d34..0e78d30 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,7 +9,7 @@ ruff>=0.8.0
 mypy>=1.16.1
 
 # Security
-bandit[toml]>=1.8.0
+bandit[toml]>=1.9.4
 pip-audit>=2.7.0
 
 # Testing