diff --git a/chrome/content/scripts/delitem.js b/chrome/content/scripts/delitem.js
index a19ccc5..fbddb40 100644
--- a/chrome/content/scripts/delitem.js
+++ b/chrome/content/scripts/delitem.js
@@ -19,8 +19,9 @@ Zotero.DelItem = {
         var truthBeTold = window.confirm(Zotero.DelItem.diwaGetString("delete.collection.and.attachment"))
         if (truthBeTold) {
             Zotero.DelItem.DelItems(items);
-            collection.deleted = true; //删除条目
-            await collection.saveTx();
+            // collection.deleted = true; //删除条目
+            // await collection.saveTx();
+            await collection.eraseTx()
         }
     },
 
diff --git a/install.rdf b/install.rdf
index 355add1..b86c366 100644
--- a/install.rdf
+++ b/install.rdf
@@ -7,7 +7,7 @@
         RDF:about="urn:mozilla:install-manifest"
         em:id="delitemwithatt@redleaf.me"
         em:name="Del Item With Att"
-        em:version="0.0.19"
+        em:version="0.0.20"
         em:type="2"
         em:creator="Minyi Han"
         em:description="Delete Item(s) With Attachment(s)"
diff --git a/update.rdf b/update.rdf
index 78e5ed5..096d5dc 100644
--- a/update.rdf
+++ b/update.rdf
@@ -6,13 +6,13 @@
             <rdf:Seq>
                 <rdf:li>
                     <rdf:Description>
-                        <em:version>0.0.19</em:version>
+                        <em:version>0.0.20</em:version>
                         <em:targetApplication>
                             <rdf:Description>
                                 <em:id>zotero@chnm.gmu.edu</em:id>
                                 <em:minVersion>5.0.0</em:minVersion>
                                 <em:maxVersion>6.*</em:maxVersion>
-                                <em:updateLink>https://github.com/redleafnew/delitemwithatt/releases/download/0.0.19/delitemwithatt.xpi</em:updateLink>
+                                <em:updateLink>https://github.com/redleafnew/delitemwithatt/releases/download/0.0.20/delitemwithatt.xpi</em:updateLink>
                             </rdf:Description>
                         </em:targetApplication> 
 
@@ -21,7 +21,7 @@
                                 <em:id>juris-m@juris-m.github.io</em:id>
                                 <em:minVersion>4.999</em:minVersion>
                                 <em:maxVersion>6.*</em:maxVersion>
-                                <em:updateLink>https://github.com/redleafnew/delitemwithatt/releases/download/0.0.19/delitemwithatt.xpi</em:updateLink>
+                                <em:updateLink>https://github.com/redleafnew/delitemwithatt/releases/download/0.0.20/delitemwithatt.xpi</em:updateLink>
                             </rdf:Description>
                         </em:targetApplication>