diff --git a/requirements-dev.txt b/requirements-dev.txt
index ba24255..2ca82b7 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -141,7 +141,7 @@ lockfile==0.12.2
     # via python-daemon
 markdown==3.10.2
     # via pyplayground (pyproject.toml)
-markdown-it-py[linkify]==3.0.0
+markdown-it-py[linkify]==4.0.0
     # via
     #   mdit-py-plugins
     #   rich
diff --git a/requirements.txt b/requirements.txt
index a63ca7d..26d8b94 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -88,7 +88,7 @@ lockfile==0.12.2
     # via python-daemon
 markdown==3.10.2
     # via pyplayground (pyproject.toml)
-markdown-it-py[linkify]==3.0.0
+markdown-it-py[linkify]==4.0.0
     # via
     #   mdit-py-plugins
     #   rich