diff --git a/install.rdf b/install.rdf
index d86a5cf7c..a0024c046 100644
--- a/install.rdf
+++ b/install.rdf
@@ -25,7 +25,7 @@
     <em:targetApplication>
       <Description>
         <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
-        <em:minVersion>38.0</em:minVersion>
+        <em:minVersion>45.0</em:minVersion>
         <em:maxVersion>45.*</em:maxVersion>
       </Description>
     </em:targetApplication>
diff --git a/update.rdf b/update.rdf
index dd49b1130..bcfa4f8c5 100644
--- a/update.rdf
+++ b/update.rdf
@@ -11,7 +11,7 @@
           <targetApplication>
             <RDF:Description>
               <id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</id>
-              <minVersion>38.0</minVersion>
+              <minVersion>45.0</minVersion>
               <maxVersion>45.*</maxVersion>
               <updateLink>http://download.zotero.org/extension/zotero.xpi</updateLink>
               <updateHash>sha1:</updateHash>