diff --git a/src/calendar/table-date.vue b/src/calendar/table-date.vue
index 6afed79..b299657 100644
--- a/src/calendar/table-date.vue
+++ b/src/calendar/table-date.vue
@@ -152,7 +152,7 @@ export default {
     },
     handleCellClick(evt) {
       let { target } = evt;
-      if (target.tagName === 'DIV') {
+      if (target.tagName.toUpperCase() === 'DIV') {
         target = target.parentNode;
       }
       const date = target.getAttribute('data-date');
diff --git a/src/calendar/table-month.vue b/src/calendar/table-month.vue
index d21bfe1..caa9e6c 100644
--- a/src/calendar/table-month.vue
+++ b/src/calendar/table-month.vue
@@ -89,7 +89,7 @@ export default {
     },
     handleClick(evt) {
       let { target } = evt;
-      if (target.tagName === 'DIV') {
+      if (target.tagName.toUpperCase() === 'DIV') {
         target = target.parentNode;
       }
       const month = target.getAttribute('data-month');
diff --git a/src/calendar/table-year.vue b/src/calendar/table-year.vue
index 985a219..251f513 100644
--- a/src/calendar/table-year.vue
+++ b/src/calendar/table-year.vue
@@ -92,7 +92,7 @@ export default {
     },
     handleClick(evt) {
       let { target } = evt;
-      if (target.tagName === 'DIV') {
+      if (target.tagName.toUpperCase() === 'DIV') {
         target = target.parentNode;
       }
       const year = target.getAttribute('data-year');