diff --git a/var/spack/repos/builtin/packages/py-blessings/package.py b/var/spack/repos/builtin/packages/py-blessings/package.py
index 4dd301ece3..155e7dbec5 100644
--- a/var/spack/repos/builtin/packages/py-blessings/package.py
+++ b/var/spack/repos/builtin/packages/py-blessings/package.py
@@ -13,4 +13,5 @@ class PyBlessings(PythonPackage):
 
     version('1.6', sha256='edc5713061f10966048bf6b40d9a514b381e0ba849c64e034c4ef6c1847d3007')
 
-    depends_on('py-setuptools', type='build')
+    # Needs 2to3
+    depends_on('py-setuptools@:57', type='build')