diff --git a/pyproject.toml b/pyproject.toml
index e92a52d..9a3a7fe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ dependencies = [
     "jupyterlab>=4.4.8",
     "pip>=25.3",
     "urllib3>=2.6.0",
-    "virtualenv==21.1.0",
+    "virtualenv==21.2.0",
 ]
 
 [dependency-groups]
diff --git a/uv.lock b/uv.lock
index 54a7074..ca46834 100644
--- a/uv.lock
+++ b/uv.lock
@@ -46,7 +46,7 @@ requires-dist = [
     { name = "jupyterlab", specifier = ">=4.4.8" },
     { name = "pip", specifier = ">=25.3" },
     { name = "urllib3", specifier = ">=2.6.0" },
-    { name = "virtualenv", specifier = "==21.1.0" },
+    { name = "virtualenv", specifier = "==21.2.0" },
 ]
 
 [package.metadata.requires-dev]
@@ -2191,7 +2191,7 @@ wheels = [
 
 [[package]]
 name = "virtualenv"
-version = "21.1.0"
+version = "21.2.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "distlib" },
@@ -2199,9 +2199,9 @@ dependencies = [
     { name = "platformdirs" },
     { name = "python-discovery" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/2f/c9/18d4b36606d6091844daa3bd93cf7dc78e6f5da21d9f21d06c221104b684/virtualenv-21.1.0.tar.gz", hash = "sha256:1990a0188c8f16b6b9cf65c9183049007375b26aad415514d377ccacf1e4fb44", size = 5840471, upload-time = "2026-02-27T08:49:29.702Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/aa/92/58199fe10049f9703c2666e809c4f686c54ef0a68b0f6afccf518c0b1eb9/virtualenv-21.2.0.tar.gz", hash = "sha256:1720dc3a62ef5b443092e3f499228599045d7fea4c79199770499df8becf9098", size = 5840618, upload-time = "2026-03-09T17:24:38.013Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/78/55/896b06bf93a49bec0f4ae2a6f1ed12bd05c8860744ac3a70eda041064e4d/virtualenv-21.1.0-py3-none-any.whl", hash = "sha256:164f5e14c5587d170cf98e60378eb91ea35bf037be313811905d3a24ea33cc07", size = 5825072, upload-time = "2026-02-27T08:49:27.516Z" },
+    { url = "https://files.pythonhosted.org/packages/c6/59/7d02447a55b2e55755011a647479041bc92a82e143f96a8195cb33bd0a1c/virtualenv-21.2.0-py3-none-any.whl", hash = "sha256:1bd755b504931164a5a496d217c014d098426cddc79363ad66ac78125f9d908f", size = 5825084, upload-time = "2026-03-09T17:24:35.378Z" },
 ]
 
 [[package]]