diff --git a/pyproject.toml b/pyproject.toml
index 12db43c..175ed44 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ dependencies = [
     "requests>=2.34.2",
     "tornado>=6.5.8",
     "urllib3>=2.7.0",
-    "virtualenv==21.12.1",
+    "virtualenv==21.13.0",
 ]
 
 [dependency-groups]
diff --git a/uv.lock b/uv.lock
index 957492a..9756098 100644
--- a/uv.lock
+++ b/uv.lock
@@ -66,7 +66,7 @@ requires-dist = [
     { name = "requests", specifier = ">=2.34.2" },
     { name = "tornado", specifier = ">=6.5.8" },
     { name = "urllib3", specifier = ">=2.7.0" },
-    { name = "virtualenv", specifier = "==21.12.1" },
+    { name = "virtualenv", specifier = "==21.13.0" },
 ]
 
 [package.metadata.requires-dev]
@@ -2364,7 +2364,7 @@ wheels = [
 
 [[package]]
 name = "virtualenv"
-version = "21.12.1"
+version = "21.13.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "distlib" },
@@ -2372,9 +2372,9 @@ dependencies = [
     { name = "platformdirs" },
     { name = "python-discovery" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/ad/3b/02608bb39c6b6f7d59ca62b04d704cf61e85361a7123b6394bca275661e1/virtualenv-21.12.1.tar.gz", hash = "sha256:be5a0a62cb2d1529ff6999652e2e7826f95bf7faa9b96b88cc39847c023d90a0", size = 5397187, upload-time = "2026-09-24T19:03:48.546Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/31/0b/825cbfd46beb2cc96c46403141081190c1afd1a348d0232a4ebcb6dcd362/virtualenv-21.13.0.tar.gz", hash = "sha256:e8aa144aabba43ffd9058e1fd1a02012b1915f8cb915acc16ad50aba9c13bfdc", size = 5399552, upload-time = "2026-09-26T16:42:09.321Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/f5/8c/692cf235722ee45c612630d2b49b3d1765892f7e440055365ea1b59c659e/virtualenv-21.12.1-py3-none-any.whl", hash = "sha256:878db9e963d0ef0b38561a344a4f9b12dc5c7741b6245d7ed10e9291cfea28bc", size = 5486096, upload-time = "2026-09-24T19:03:45.985Z" },
+    { url = "https://files.pythonhosted.org/packages/c5/2c/8b107f9e029da006c39af38a0a150dde57ecce48b495c79917d1ad963821/virtualenv-21.13.0-py3-none-any.whl", hash = "sha256:ca16ceba89e58d8e2f376769349c63f3ed66f79881ae68bc13e19a9d50e0e987", size = 5486498, upload-time = "2026-09-26T16:42:07.106Z" },
 ]
 
 [[package]]