diff --git a/deps/db/src/logseq/db/frontend/schema.cljs b/deps/db/src/logseq/db/frontend/schema.cljs
index daf826d256..3260587a98 100644
--- a/deps/db/src/logseq/db/frontend/schema.cljs
+++ b/deps/db/src/logseq/db/frontend/schema.cljs
@@ -37,7 +37,7 @@
          (map (juxt :major :minor)
               [(parse-schema-version x) (parse-schema-version y)])))
 
-(def version (parse-schema-version "64.8"))
+(def version (parse-schema-version "64.9"))
 
 (defn major-version
   "Return a number.
diff --git a/src/main/frontend/worker/db/migrate.cljs b/src/main/frontend/worker/db/migrate.cljs
index d81a866a5c..2a6fd9519c 100644
--- a/src/main/frontend/worker/db/migrate.cljs
+++ b/src/main/frontend/worker/db/migrate.cljs
@@ -859,6 +859,12 @@
                        :logseq.task/scheduled :logseq.property/scheduled})
    conn search-db))
 
+
+(defn- empty-placeholder-add-block-uuid
+  [_conn _search-db]
+  [{:db/ident :logseq.property/empty-placeholder
+    :block/uuid (common-uuid/gen-uuid :builtin-block-uuid :logseq.property/empty-placeholder)}])
+
 (def ^:large-vars/cleanup-todo schema-version->updates
   "A vec of tuples defining datascript migrations. Each tuple consists of the
    schema version integer and a migration map. A migration map can have keys of :properties, :classes
@@ -958,8 +964,8 @@
    [62 {:fix remove-block-schema}]
    [63 {:properties [:logseq.property.table/pinned-columns]}]
    [64 {:fix update-view-filter}]
-   ;;;; schema-version format: "<major>.<minor>"
-   ;;;; int number equals to "<major>" (without <minor>)
+;;;; schema-version format: "<major>.<minor>"
+;;;; int number equals to "<major>" (without <minor>)
    ["64.1" {:properties [:logseq.property.view/group-by-property]
             :fix add-view-icons}]
    ["64.2" {:properties [:logseq.property.view/feature-type]
@@ -970,7 +976,8 @@
    ["64.5" {:fix add-group-by-property-for-list-views}]
    ["64.6" {:fix cardinality-one-multiple-values}]
    ["64.7" {:fix rename-repeated-properties}]
-   ["64.8" {:fix rename-task-properties}]])
+   ["64.8" {:fix rename-task-properties}]
+   ["64.9" {:fix empty-placeholder-add-block-uuid}]])
 
 (let [[major minor] (last (sort (map (comp (juxt :major :minor) db-schema/parse-schema-version first)
                                      schema-version->updates)))