diff --git a/requirements-full.txt b/requirements-full.txt
index 277629dedc..7d3c345085 100644
--- a/requirements-full.txt
+++ b/requirements-full.txt
@@ -1,4 +1,4 @@
--e git+https://github.com/zopefoundation/Zope.git@master#egg=Zope
+Zope==4.0
 AccessControl==4.0
 Acquisition==4.6
 AuthEncoding==4.1
diff --git a/versions-prod.cfg b/versions-prod.cfg
index cfe4d2ba91..a2a38447d1 100644
--- a/versions-prod.cfg
+++ b/versions-prod.cfg
@@ -2,7 +2,7 @@
 # Version pins for required and commonly used dependencies.
 
 [versions]
-Zope =
+Zope = 4.0
 Zope2 = 4.0b1
 AccessControl = 4.0
 Acquisition = 4.6