diff --git a/java/connector-node/risingwave-connector-service/src/main/java/com/risingwave/connector/source/common/MySqlValidator.java b/java/connector-node/risingwave-connector-service/src/main/java/com/risingwave/connector/source/common/MySqlValidator.java
index d20a18185a74d..8c122f0f365e5 100644
--- a/java/connector-node/risingwave-connector-service/src/main/java/com/risingwave/connector/source/common/MySqlValidator.java
+++ b/java/connector-node/risingwave-connector-service/src/main/java/com/risingwave/connector/source/common/MySqlValidator.java
@@ -63,7 +63,15 @@ public MySqlValidator(
     @Override
     public void validateDbConfig() {
         try {
-            // TODO: check database server version
+            // Check whether MySQL version is less than 8.4,
+            // since MySQL 8.4 introduces some breaking changes:
+            // https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-0.html#mysqld-8-4-0-deprecation-removal
+            var major = jdbcConnection.getMetaData().getDatabaseMajorVersion();
+            var minor = jdbcConnection.getMetaData().getDatabaseMinorVersion();
+
+            if ((major > 8) || (major == 8 && minor >= 4)) {
+                throw ValidatorUtils.failedPrecondition("MySQL version should be less than 8.4");
+            }
             validateBinlogConfig();
         } catch (SQLException e) {
             throw ValidatorUtils.internalError(e.getMessage());