diff --git a/changes/1990.misc.rst b/changes/1990.misc.rst
new file mode 100644
index 000000000..ff9b2964a
--- /dev/null
+++ b/changes/1990.misc.rst
@@ -0,0 +1 @@
+Updated tox from 4.18.0 to 4.18.1.
diff --git a/pyproject.toml b/pyproject.toml
index 0782749f7..f643c275f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -101,7 +101,7 @@ dev = [
     "pytest == 8.3.2",
     "pytest-xdist == 3.6.1",
     "setuptools_scm == 8.1.0",
-    "tox == 4.18.0",
+    "tox == 4.18.1",
 ]
 # Docs are always built on a specific Python version; see RTD and tox config files,
 # and the docs contribution guide.