diff --git a/pyproject.toml b/pyproject.toml
index 6aaa7d7..4d888a6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ keywords = [
     "Markdown",
 ]
 
-dependencies = ["PyYAML>=6", "essentials>=1.1.5", "MarkupSafe~=2.1.2"]
+dependencies = ["PyYAML>=6", "essentials>=1.1.5", "MarkupSafe>=3.0.0"]
 
 [tool.hatch.version]
 path = "openapidocs/__init__.py"
diff --git a/requirements.txt b/requirements.txt
index 6105e18..d99937e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ isort==5.12.0
 itsdangerous==2.1.2
 Jinja2==3.1.2
 markdown-it-py==3.0.0
-MarkupSafe==2.1.3
+MarkupSafe==3.0.1
 mccabe==0.7.0
 mdurl==0.1.2
 mypy-extensions==1.0.0