diff --git a/software/build-rina/build.cfg b/software/build-rina/build.cfg
index bb36f8d8805bae08feb229f2b26fd610a2ebfa5a..cfed97c2c1647dffb6838046fd2fce3f7209eb16 100644
--- a/software/build-rina/build.cfg
+++ b/software/build-rina/build.cfg
@@ -109,6 +109,9 @@ install =
   extends = /mnt/slapos/software/hellorina/software.cfg
   develop = /mnt/slapos
   download-cache = /mnt/download-cache
+  # Required for recent buildout.
+  extensions -=
+    buildout-versions
   [slapos-cookbook-develop]
   recipe =
   setup =