diff --git a/pyproject.toml b/pyproject.toml
index 9b76d7f..3d79540 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ dependencies = [
     "pygments>=2.20.0",
     "requests>=2.33.0",
     "urllib3>=2.6.0",
-    "virtualenv==21.2.3",
+    "virtualenv==21.2.4",
 ]
 
 [dependency-groups]
diff --git a/uv.lock b/uv.lock
index a2c881d..2041f6f 100644
--- a/uv.lock
+++ b/uv.lock
@@ -52,7 +52,7 @@ requires-dist = [
     { name = "pygments", specifier = ">=2.20.0" },
     { name = "requests", specifier = ">=2.33.0" },
     { name = "urllib3", specifier = ">=2.6.0" },
-    { name = "virtualenv", specifier = "==21.2.3" },
+    { name = "virtualenv", specifier = "==21.2.4" },
 ]
 
 [package.metadata.requires-dev]
@@ -2213,7 +2213,7 @@ wheels = [
 
 [[package]]
 name = "virtualenv"
-version = "21.2.3"
+version = "21.2.4"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "distlib" },
@@ -2221,9 +2221,9 @@ dependencies = [
     { name = "platformdirs" },
     { name = "python-discovery" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/60/8c/bdd9f89f89e4a787ac61bb2da4d884bc45e0c287ec694dfa3170dddd5cfe/virtualenv-21.2.3.tar.gz", hash = "sha256:9bb6d1414ab55ca624371e30c7719c32f183ef44da544ef8aa44a456de7ac191", size = 5844776, upload-time = "2026-04-14T01:10:36.692Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/0c/98/3a7e644e19cb26133488caff231be390579860bbbb3da35913c49a1d0a46/virtualenv-21.2.4.tar.gz", hash = "sha256:b294ef68192638004d72524ce7ef303e9d0cf5a44c95ce2e54a7500a6381cada", size = 5850742, upload-time = "2026-04-14T22:15:31.438Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/95/19/bc7c4e05f42532863cf2ae7e7e847beab25835934e0410160b47eeff1e35/virtualenv-21.2.3-py3-none-any.whl", hash = "sha256:486652347ea8526d91e9807c0274583cb7ba31dd4942ff10fb5621402f0fe0d8", size = 5828329, upload-time = "2026-04-14T01:10:34.809Z" },
+    { url = "https://files.pythonhosted.org/packages/27/8d/edd0bd910ff803c308ee9a6b7778621af0d10252219ad9f19ef4d4982a61/virtualenv-21.2.4-py3-none-any.whl", hash = "sha256:29d21e941795206138d0f22f4e45ff7050e5da6c6472299fb7103318763861ac", size = 5831232, upload-time = "2026-04-14T22:15:29.342Z" },
 ]
 
 [[package]]