diff --git a/constraints/constraints-master.txt b/constraints/constraints-master.txt
index 794742a47..7a158c7a3 100644
--- a/constraints/constraints-master.txt
+++ b/constraints/constraints-master.txt
@@ -7,3 +7,7 @@
 # * zaza-openstack-tests
 #
 juju>=3.1.0,<3.2.0
+
+# There are multiple direct dependencies pulled in from `setup.py` that do not
+# work with a setuptools that does not offer `pkg_resources`.
+setuptools<82
diff --git a/constraints/constraints-noble.txt b/constraints/constraints-noble.txt
index 91fb98eab..d0bed0b5b 100644
--- a/constraints/constraints-noble.txt
+++ b/constraints/constraints-noble.txt
@@ -7,3 +7,7 @@
 # * zaza-openstack-tests
 #
 juju>=3.5.0,<3.6.0
+
+# There are multiple direct dependencies pulled in from `setup.py` that do not
+# work with a setuptools that does not offer `pkg_resources`.
+setuptools<82