diff --git a/pyproject.toml b/pyproject.toml
index cb4a3d9..dc65337 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ dependencies = [
   "pandas==3.0.3",
   "numpy==2.4.6",
   "requests==2.34.2",
-  "matplotlib==3.11.0",
+  "matplotlib==3.11.1",
   "PyYAML==6.0.3",
   "lightgbm==4.7.0",
   "scikit-learn==1.9.0",
diff --git a/requirements-lock.txt b/requirements-lock.txt
index 930ea0a..e3029d5 100644
--- a/requirements-lock.txt
+++ b/requirements-lock.txt
@@ -2,7 +2,7 @@ quant-platform-kit @ git+https://github.com/QuantStrategyLab/QuantPlatformKit.gi
 pandas==3.0.3
 numpy==2.4.6
 requests==2.34.2
-matplotlib==3.11.0
+matplotlib==3.11.1
 PyYAML==6.0.3
 lightgbm==4.7.0
 scikit-learn==1.9.0