diff --git a/base.cfg b/base.cfg
index fb88fc1..3caf3e3 100644
--- a/base.cfg
+++ b/base.cfg
@@ -15,6 +15,9 @@ parts =
     omelette
 develop = .
 
+[versions]
+# temp, until part of Plone 5.2+ releases:
+plone.app.querystring = 1.4.14
 
 [instance]
 recipe = plone.recipe.zope2instance