Pin upper versions of dependencies.

Author: rnixx

CHANGES.rst

@@ -4,7 +4,8 @@ Changes
 1.7 (unreleased)
 ----------------
 
-- Nothing changed yet.
+- Pin upper versions of dependencies.
+  [rnix]
 
 
 1.6 (2022-12-05)

setup.py

@@ -50,7 +50,7 @@ def read_file(name):
     zip_safe=False,
     install_requires=[
         'setuptools',
-        'node>=1.0',
+        'node>=1.0,<2.0.0',
         'ZODB'
     ],
     extras_require=dict(