diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09bdb95..d43a41e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## Unreleased
+### Security
+- Upgraded `werkzeug`, `flask`, and `pytest` to address potential CVE vulnerabilities.
 
 ## 10.5.0 - 2026-03-19
 ### Added
diff --git a/pyproject.toml b/pyproject.toml
index eaf5569..317e7e3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,14 +23,14 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = "^3.10"
-Flask = "3.1.2"
-Werkzeug = "3.1.4"
+Flask = "3.1.3"
+Werkzeug = "3.1.8"
 Flask-Cors = "6.0.1"
 requests-toolbelt = "1.0.0"
 pandas = " ^2.0.2"
 chardet = "5.2.0"
 Shapely = "2.1.2"
-pytest = "9.0.2"
+pytest = "9.0.3"
 tzlocal = "5.3.1"
 
 [project]