diff --git a/.travis.yml b/.travis.yml
index f9678cd..b9a0e0d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,11 +1,18 @@
 language: python
 sudo: false
 python:
-    - 2.7
-    - pypy-5.4.1
-    - 3.4
-    - 3.5
-    - 3.6
+  - 2.7
+  - 3.4
+  - 3.5
+  - 3.6
+  - pypy
+  - pypy3
+matrix:
+    include:
+        - python: "3.7"
+          dist: xenial
+          sudo: true
+
 install:
     - pip install -U pip setuptools
     - pip install -U coverage coveralls
diff --git a/CHANGES.rst b/CHANGES.rst
index 604dc0a..bc4378d 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,15 +1,15 @@
-=======
-CHANGES
-=======
+=========
+ CHANGES
+=========
 
-4.0.1 (unreleased)
-------------------
+4.1.0 (unreleased)
+==================
 
-- Nothing changed yet.
+- Add support for Python 3.7.
 
 
 4.0.0 (2017-04-22)
-------------------
+==================
 
 - Add support for Python 3.4, 3.5, and 3.6 and PyPy.
 
@@ -20,17 +20,17 @@ CHANGES
 - Removed zope.app.testing dependency.
 
 3.5.1 (2009-12-15)
-------------------
+==================
 
 - Added missing zcml namespace to the configure file.
 
 3.5.0 (2009-12-15)
-------------------
+==================
 
 - Moved CheckDependency event handler and its tests into this package from
   its former place in zope.container.
 
 3.4.0 (2007-10-23)
-------------------
+==================
 
 - Initial release independent of the main Zope tree.
diff --git a/setup.py b/setup.py
index 575b806..5f615b4 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,7 @@ def read(*rnames):
     with open(os.path.join(os.path.dirname(__file__), *rnames)) as f:
         return f.read()
 
-version = '4.0.1.dev0'
+version = '4.1.0.dev0'
 tests_require = [
     'zope.container',
     'zope.testing',
@@ -55,6 +55,7 @@ def read(*rnames):
           'Programming Language :: Python :: 3.4',
           'Programming Language :: Python :: 3.5',
           'Programming Language :: Python :: 3.6',
+          'Programming Language :: Python :: 3.7',
           'Programming Language :: Python :: Implementation :: CPython',
           'Programming Language :: Python :: Implementation :: PyPy',
           'Natural Language :: English',
@@ -62,7 +63,7 @@ def read(*rnames):
           'Topic :: Internet :: WWW/HTTP',
           'Framework :: Zope :: 3',
       ],
-      url='http://github.com/zopefoundation/zope.app.dependable',
+      url='https://github.com/zopefoundation/zope.app.dependable',
       license='ZPL 2.1',
       packages=find_packages('src'),
       package_dir={'': 'src'},
diff --git a/src/zope/app/dependable/tests.py b/src/zope/app/dependable/tests.py
index 905e50e..2eb4af3 100644
--- a/src/zope/app/dependable/tests.py
+++ b/src/zope/app/dependable/tests.py
@@ -56,7 +56,7 @@ def testVerifyInterface(self):
 
     def testBasic(self):
         dependable = self.factory()
-        self.failIf(dependable.dependents())
+        self.assertFalse(dependable.dependents())
         dependable.addDependent('/a/b')
         dependable.addDependent('/c/d')
         dependable.addDependent('/c/e')
@@ -101,8 +101,7 @@ def testWithParent(self):
         parent.__name__ = 'parent'
         parent.__parent__ = grandparent
 
-        obj = AttributeAnnotations(C())
-        obj.__parent__ = parent
+        obj = AttributeAnnotations(parent)
         obj.__name__ = 'obj'
 
         from zope.traversing.api import getPath
diff --git a/tox.ini b/tox.ini
index 695f359..d409092 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py27, pypy, py34, py35, py36
+    py27, pypy, py34, py35, py36, py37
 
 [testenv]
 commands =