diff --git a/pyproject.toml b/pyproject.toml
index d166a8f..43909b7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dependencies = [
     "soupsieve==2.9.0",
     "tornado==6.5.8",
     "urllib3>=2.7.0",
-    "virtualenv==21.7.0",
+    "virtualenv==21.13.0",
 ]
 
 [dependency-groups]
@@ -98,7 +98,7 @@ default-groups = ["dev"]
 # override so the security floors in [project.dependencies] still win.
 override-dependencies = [
     "filelock==3.32.0",
-    "virtualenv==21.7.0",
+    "virtualenv==21.13.0",
 ]
 
 [tool.uv.workspace]
diff --git a/uv.lock b/uv.lock
index fcef44b..28fdb9e 100644
--- a/uv.lock
+++ b/uv.lock
@@ -6,13 +6,13 @@ resolution-markers = [
     "python_full_version >= '3.15' and sys_platform != 'darwin' and sys_platform != 'win32'",
     "python_full_version >= '3.15' and sys_platform == 'darwin'",
     "python_full_version == '3.14.*' and sys_platform == 'win32'",
-    "python_full_version == '3.13.*' and sys_platform == 'win32'",
-    "python_full_version < '3.13' and sys_platform == 'win32'",
     "python_full_version == '3.14.*' and sys_platform != 'darwin' and sys_platform != 'win32'",
-    "python_full_version == '3.13.*' and sys_platform != 'darwin' and sys_platform != 'win32'",
-    "python_full_version < '3.13' and sys_platform != 'darwin' and sys_platform != 'win32'",
     "python_full_version == '3.14.*' and sys_platform == 'darwin'",
+    "python_full_version == '3.13.*' and sys_platform == 'win32'",
+    "python_full_version == '3.13.*' and sys_platform != 'darwin' and sys_platform != 'win32'",
     "python_full_version == '3.13.*' and sys_platform == 'darwin'",
+    "python_full_version < '3.13' and sys_platform == 'win32'",
+    "python_full_version < '3.13' and sys_platform != 'darwin' and sys_platform != 'win32'",
     "python_full_version < '3.13' and sys_platform == 'darwin'",
 ]
 
@@ -23,7 +23,7 @@ members = [
 ]
 overrides = [
     { name = "filelock", specifier = "==3.32.0" },
-    { name = "virtualenv", specifier = "==21.7.0" },
+    { name = "virtualenv", specifier = "==21.13.0" },
 ]
 
 [[package]]
@@ -5842,7 +5842,7 @@ requires-dist = [
     { name = "soupsieve", specifier = "==2.9.0" },
     { name = "tornado", specifier = "==6.5.8" },
     { name = "urllib3", specifier = ">=2.7.0" },
-    { name = "virtualenv", specifier = "==21.7.0" },
+    { name = "virtualenv", specifier = "==21.13.0" },
 ]
 
 [package.metadata.requires-dev]
@@ -6306,10 +6306,10 @@ resolution-markers = [
     "python_full_version >= '3.15' and sys_platform == 'win32'",
     "python_full_version >= '3.15' and sys_platform != 'darwin' and sys_platform != 'win32'",
     "python_full_version == '3.14.*' and sys_platform == 'win32'",
-    "python_full_version == '3.13.*' and sys_platform == 'win32'",
-    "python_full_version < '3.13' and sys_platform == 'win32'",
     "python_full_version == '3.14.*' and sys_platform != 'darwin' and sys_platform != 'win32'",
+    "python_full_version == '3.13.*' and sys_platform == 'win32'",
     "python_full_version == '3.13.*' and sys_platform != 'darwin' and sys_platform != 'win32'",
+    "python_full_version < '3.13' and sys_platform == 'win32'",
     "python_full_version < '3.13' and sys_platform != 'darwin' and sys_platform != 'win32'",
 ]
 dependencies = [
@@ -6388,7 +6388,7 @@ wheels = [
 
 [[package]]
 name = "virtualenv"
-version = "21.7.0"
+version = "21.13.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "distlib" },
@@ -6396,9 +6396,9 @@ dependencies = [
     { name = "platformdirs" },
     { name = "python-discovery" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/fe/25/e367a7229b0914772ca8d81b41fde012d9feda68523b52644a571bb21ce8/virtualenv-21.7.0.tar.gz", hash = "sha256:7f9519b9432ff11b6e1a3e94061664efc2ff99ea21780e3cf4f6bd0a5da8b37c", size = 5527510, upload-time = "2026-07-21T13:12:14.109Z" }
+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/a5/7a/ae29312b1e88a22e81f5d21fc11526d2a114089776c2550d2b205b6c2a47/virtualenv-21.7.0-py3-none-any.whl", hash = "sha256:a8370c1c5530fbabf955e40b8fbbc68a431648b10f9433faa587db30a06e51dd", size = 5507078, upload-time = "2026-07-21T13:12:12.136Z" },
+    { 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]]