diff --git a/install.rdf b/install.rdf
index 583546d57..1cbd2256f 100644
--- a/install.rdf
+++ b/install.rdf
@@ -25,7 +25,7 @@
       <Description>
         <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
         <em:minVersion>3.0</em:minVersion>
-        <em:maxVersion>3.6b3pre</em:maxVersion>
+        <em:maxVersion>3.6b4pre</em:maxVersion>
       </Description>
     </em:targetApplication>
     
diff --git a/update.rdf b/update.rdf
index b737b9aa1..832fadaeb 100644
--- a/update.rdf
+++ b/update.rdf
@@ -12,7 +12,7 @@
             <RDF:Description>
               <id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</id>
               <minVersion>3.0</minVersion>
-              <maxVersion>3.6b3pre</maxVersion>
+              <maxVersion>3.6b4pre</maxVersion>
               <updateLink>http://www.zotero.org/download/zotero.xpi</updateLink>
               <updateHash>sha1:</updateHash>
             </RDF:Description>