diff --git a/admin/environment.xml b/admin/environment.xml
index 3cc5e8d6b05..451de914c1e 100644
--- a/admin/environment.xml
+++ b/admin/environment.xml
@@ -2982,7 +2982,7 @@
       </CUSTOM_CHECK>
     </CUSTOM_CHECKS>
   </MOODLE>
-  <MOODLE version="3.9" requires="3.2">
+  <MOODLE version="3.9" requires="3.5">
     <UNICODE level="required">
       <FEEDBACK>
         <ON_ERROR message="unicoderequired" />