diff --git a/im-sdk-core/src/test/java/com/easemob/im/server/model/EMUserTest.java b/im-sdk-core/src/test/java/com/easemob/im/server/model/EMUserTest.java
index 3b84bb95f..935a93a6d 100644
--- a/im-sdk-core/src/test/java/com/easemob/im/server/model/EMUserTest.java
+++ b/im-sdk-core/src/test/java/com/easemob/im/server/model/EMUserTest.java
@@ -23,7 +23,7 @@ public void testPasswordValidate() {
         assertThrows(EMInvalidArgumentException.class, () -> EMUser.validatePassword(null)); // null
         assertThrows(EMInvalidArgumentException.class, () -> EMUser.validatePassword("")); // empty
         assertThrows(EMInvalidArgumentException.class, () -> EMUser
-                .validatePassword("000000000000000000000000000000000")); // too long, 32 bytes max
+                .validatePassword("000000000000000000000000000000000000000000000000000000000000000000")); // too long, 64 bytes max
         assertThrows(EMInvalidArgumentException.class,
                 () -> EMUser.validatePassword("\r\n")); // invalid character
         assertThrows(EMInvalidArgumentException.class,