diff --git a/package.json b/package.json
index a6418e883b..19d1035a54 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   "license": "MIT",
   "dependencies": {
     "css-animation": "1.1.x",
-    "gregorian-calendar": "~3.0.0",
+    "gregorian-calendar": "~3.1.0",
     "gregorian-calendar-format": "~3.0.1",
     "object-assign": "~4.0.1",
     "rc-animate": "~2.0.0",
diff --git a/style/components/datepicker/Calendar.less b/style/components/datepicker/Calendar.less
index ad273b45fe..738b796126 100644
--- a/style/components/datepicker/Calendar.less
+++ b/style/components/datepicker/Calendar.less
@@ -83,10 +83,11 @@
 
   &-input-wrap {
     padding: 8px;
+    border-bottom: 1px solid #e9e9e9;
   }
 
   &-input {
-    .input();
+    border: 0;
     width: 100%;
     cursor: auto;
   }