diff --git a/knot/files/knot.conf b/knot/files/knot.conf
index 034276e..b944fe9 100644
--- a/knot/files/knot.conf
+++ b/knot/files/knot.conf
@@ -11,9 +11,9 @@ log:
 
 {%- if server.key is defined %}
 key:
-{%- for key_name, key in server.key.iteritems() %}
+{%- for key_name, key in server.key.items() %}
   - id: {{ key_name }}
-    {%- for param_name, param_value in key.iteritems() %}
+    {%- for param_name, param_value in key.items() %}
     {{ param_name }}: {% if param_value is string %}"{{ param_value }}"{% else %}{{ param_value }}{% endif %}
     {%- endfor %}
 {%- endfor %}
@@ -55,9 +55,9 @@ template:
 
 {%- if server.zone is defined %}
 zone:
-{%- for zone_name, zone in server.zone.iteritems() %}
+{%- for zone_name, zone in server.zone.items() %}
   - domain: {{ zone_name }}
-    {%- for param_name, param_value in zone.iteritems() %}
+    {%- for param_name, param_value in zone.items() %}
     {%- if param_name != "records" %}
     {{ param_name }}: {% if param_value is string %}"{{ param_value }}"{% else %}{{ param_value }}{% endif %}
     {%- endif %}