diff --git a/CHANGES.txt b/CHANGES.txt
index 9c44202f..d42a2945 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -7,6 +7,10 @@ Grok changes
 Bug fixes
 ---------
 
+* Fix https://bugs.launchpad.net/grok/+bug/229677:
+  zope.app.securitypolicy egg missing. Now zope.app.securitypolicy
+  3.4.6 is additionally required by Grok and fetched by buildout.
+
 * The grokkers for adapters and global utilities did not use the
   correct value for the *provided* interface in the configuration
   action discriminator.  Because of this, uninformative and
diff --git a/setup.py b/setup.py
index adec10ca..a53b43c4 100644
--- a/setup.py
+++ b/setup.py
@@ -55,6 +55,7 @@ def read(*rnames):
                       'zope.app.publisher',
                       'zope.app.renderer',
                       'zope.app.security',
+                      'zope.app.securitypolicy',
                       'zope.app.testing',
                       'zope.app.twisted',
                       'zope.app.zcmlfiles',
diff --git a/versions.cfg b/versions.cfg
index f89ea41d..d63e29ff 100644
--- a/versions.cfg
+++ b/versions.cfg
@@ -49,6 +49,7 @@ zope.app.renderer = 3.4.0a1
 zope.app.rotterdam = 3.4.0a1
 zope.app.schema = 3.4.0a1
 zope.app.security = 3.4.0a1-1
+zope.app.securitypolicy = 3.4.6
 zope.app.server = 3.4.0a1-4
 zope.app.session = 3.4.0a1
 zope.app.skins = 3.4.0a1