diff --git a/hiera.yaml b/hiera.yaml
index 8c4aecb..67d2a2e 100644
--- a/hiera.yaml
+++ b/hiera.yaml
@@ -2,6 +2,6 @@
     - host-conf/host
     - site
 :backends:
-    - yaml
+    - json
 :yaml:
     :datadir: '/etc/puppet/site-conf/'