diff --git a/source/bookinfo.xml b/source/bookinfo.xml
index 3479e423..a805f5b3 100644
--- a/source/bookinfo.xml
+++ b/source/bookinfo.xml
@@ -52,5 +52,6 @@
   <!-- here inside the rename element. -->
   <rename element="worksheet" xml:lang="en-US">&#8193;</rename>
 
-  <doenetml version="0.7.21-dev.343" />
+  <doenetml version="0.7" />
+  <!-- replaced <doenetml version="0.7.21-dev.343" /> on 9.22.26 to address the change Duane announced -->
 </docinfo>