diff --git a/src/lib/isMobilePhone.js b/src/lib/isMobilePhone.js
index 59712bb6a..ce8282d56 100644
--- a/src/lib/isMobilePhone.js
+++ b/src/lib/isMobilePhone.js
@@ -36,7 +36,7 @@ const phones = {
   'hu-HU': /^(\+?36)(20|30|70)\d{7}$/,
   'id-ID': /^(\+?62|0[1-9])[\s|\d]+$/,
   'it-IT': /^(\+?39)?\s?3\d{2} ?\d{6,7}$/,
-  'ja-JP': /^(\+?81|0)\d{1,4}[ \-]?\d{1,4}[ \-]?\d{4}$/,
+  'ja-JP': /^(\+?81|0)[789]0[ \-]?[1-9]\d{2}[ \-]?\d{5}$/,
   'kl-GL': /^(\+?299)?\s?\d{2}\s?\d{2}\s?\d{2}$/,
   'ko-KR': /^((\+?82)[ \-]?)?0?1([0|1|6|7|8|9]{1})[ \-]?\d{3,4}[ \-]?\d{4}$/,
   'lt-LT': /^(\+370|8)\d{8}$/,
diff --git a/test/validators.js b/test/validators.js
index 593c3b43d..444aac068 100644
--- a/test/validators.js
+++ b/test/validators.js
@@ -3573,19 +3573,9 @@ describe('Validators', function () {
       {
         locale: 'ja-JP',
         valid: [
-          '0312345678',
-          '0721234567',
           '09012345688',
-          '06 1234 5678',
-          '072 123 4567',
-          '0729 12 3456',
-          '07296 1 2345',
-          '072961 2345',
-          '090 1234 5678',
-          '03-1234-5678',
-          '+81312345678',
-          '+816-1234-5678',
-          '+8190-1234-5678',
+          '090 123 45678',
+          '+8190-123-45678',
         ],
         invalid: [
           '12345',
@@ -3596,6 +3586,17 @@ describe('Validators', function () {
           '0 1234 5689',
           '16 1234 5689',
           '03_1234_5689',
+          '0312345678',
+          '0721234567',
+          '08002345678',
+          '06 1234 5678',
+          '072 123 4567',
+          '0729 12 3456',
+          '07296 1 2345',
+          '072961 2345',
+          '03-1234-5678',
+          '+81312345678',
+          '+816-1234-5678',
         ],
       },
       {