diff --git a/commit.ref b/commit.ref
index 0dfbb63..a416dbe 160000
--- a/commit.ref
+++ b/commit.ref
@@ -1 +1 @@
-Subproject commit 0dfbb63b1c6e82b4c5f8ccd7846fb92f0aaea09e
+Subproject commit a416dbe01d0f2b9405b1407dcc87faa90dd002b1
diff --git a/commit.yml b/commit.yml
index 919b68e..77c4aba 100644
--- a/commit.yml
+++ b/commit.yml
@@ -3,15 +3,18 @@ branches: {
   }
 fileChange:
   /collection:
-    newFile: !uuid '1ae1c8af9523fa37cf584c20a5b6f93af996524b'
-    oldFile: !uuid '46acbb40cac56ede383fc3dc3ba609e6ee99993c'
-  /collection/opendb-city-china:
-    newFile: !uuid 'd3f16a251f531d7ad85ab8b7bf9f22a2d0819da6'
-    oldFile: !uuid 'c0ca5877114b87eab0661bb278c2948ffdf86f56'
-  /collection/opendb-city-china/collection.json:
-    newFile: !uuid 'b2c57412889613ebfff66a71f42df5a813b80232'
-    oldFile: !uuid '00fc1904d357e1525f67e410da7e57b160952a65'
-gitCommitId: !uuid '0dfbb63b1c6e82b4c5f8ccd7846fb92f0aaea09e'
+    newFile: !uuid '980941dc443c286ceb33161076944c9648188f5d'
+    oldFile: !uuid '1ae1c8af9523fa37cf584c20a5b6f93af996524b'
+  /collection/opendb-contacts:
+    newFile: !uuid 'c780e21655d702e45b7488994c7213d5f8888f27'
+    oldFile: !uuid '0d2494886d9b11e7ab7581c3950886d54e31b14f'
+  /collection/opendb-contacts/collection.json:
+    newFile: !uuid '471f70fd0fbbbcc5e7d2c672ec07b55f3bf318bd'
+    oldFile: !uuid 'e0e0d1497a6b9da865fe8633aa838b07fd237a78'
+  /collection/opendb-contacts/data.json:
+    newFile: null
+    oldFile: !uuid '6d0dff493fdc41dd1911bd27ffa02553f391d21d'
+gitCommitId: !uuid 'a416dbe01d0f2b9405b1407dcc87faa90dd002b1'
 renames: {
   }
-revisionId: 186
+revisionId: 187