diff --git a/sdf/1.11/root.sdf b/sdf/1.11/root.sdf
index 94ecc8731..fdca73f1f 100644
--- a/sdf/1.11/root.sdf
+++ b/sdf/1.11/root.sdf
@@ -1,7 +1,7 @@
 <element name="sdf" required="1">
   <description>SDFormat base element that can include one model, actor, light, or worlds. A user of multiple worlds could run parallel instances of simulation, or offer selection of a world at runtime.</description>
 
-  <attribute name="version" type="string" default="1.10" required="1">
+  <attribute name="version" type="string" default="1.11" required="1">
     <description>
         Version number of the SDFormat specification, consisting of major
         and minor versions delimited by a `.` character.