diff --git a/.ci_support/environment-mpich.yml b/.ci_support/environment-mpich.yml
index 6e05a499..d44bf1b4 100644
--- a/.ci_support/environment-mpich.yml
+++ b/.ci_support/environment-mpich.yml
@@ -12,4 +12,4 @@ dependencies:
 - pygraphviz =1.14
 - ipython =9.0.2
 - pysqa =0.2.4
-- setuptools =80.1.0
+- setuptools =80.3.1
diff --git a/.ci_support/environment-openmpi.yml b/.ci_support/environment-openmpi.yml
index c97feb66..6ab35c33 100644
--- a/.ci_support/environment-openmpi.yml
+++ b/.ci_support/environment-openmpi.yml
@@ -12,4 +12,4 @@ dependencies:
 - pygraphviz =1.14
 - pysqa =0.2.4
 - ipython =9.0.2
-- setuptools =80.1.0
+- setuptools =80.3.1
diff --git a/.ci_support/environment-win.yml b/.ci_support/environment-win.yml
index 778987db..e3f7a37f 100644
--- a/.ci_support/environment-win.yml
+++ b/.ci_support/environment-win.yml
@@ -11,4 +11,4 @@ dependencies:
 - networkx =3.4.2
 - pygraphviz =1.14
 - ipython =9.0.2
-- setuptools =80.1.0
+- setuptools =80.3.1
diff --git a/pyproject.toml b/pyproject.toml
index 0e426ca6..4ceee7d5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 requires = [
     "cloudpickle==3.1.1",
     "pyzmq==26.4.0",
-    "setuptools==80.1.0",
+    "setuptools==80.3.1",
     "versioneer[toml]==0.29",
 ]
 build-backend = "setuptools.build_meta"