diff --git a/dev/buildout.cfg b/dev/buildout.cfg
index 1bdb49e..5542f81 100644
--- a/dev/buildout.cfg
+++ b/dev/buildout.cfg
@@ -20,6 +20,7 @@ auto-checkout =
 
 [versions]
 zc.buildout = 1.2.1
+Products.PloneTestCase = 0.9.8 # 0.9.9 breaks 52 tests
 
 [zope2]
 recipe = plone.recipe.zope2install