diff --git a/sharding-core/src/test/resources/yaml/optimize-rule.yaml b/sharding-core/src/test/resources/yaml/optimize-rule.yaml
index 64e6b9d20c9f718dd826863620ed91c4778ad661..5c0a92f045d7d7e36845e7244c2cb20623d121f0 100644
--- a/sharding-core/src/test/resources/yaml/optimize-rule.yaml
+++ b/sharding-core/src/test/resources/yaml/optimize-rule.yaml
@@ -24,5 +24,5 @@ shardingRule:
           algorithmExpression: t_order_${order_id % 2}
       keyGenerator:
         column: order_id
-        className: io.shardingsphere.core.keygen.DefaultKeyGenerator
+        className: io.shardingsphere.core.keygen.SnowflakeKeyGenerator
       logicIndex: order_index
diff --git a/sharding-core/src/test/resources/yaml/parser-rule.yaml b/sharding-core/src/test/resources/yaml/parser-rule.yaml
index bf83a90653d26715d2929169ab0a85891055acde..5117bed6f7d0c6c504ed83dff56da01f28995a06 100644
--- a/sharding-core/src/test/resources/yaml/parser-rule.yaml
+++ b/sharding-core/src/test/resources/yaml/parser-rule.yaml
@@ -27,7 +27,7 @@ shardingRule:
           algorithmClassName: io.shardingsphere.api.algorithm.fixture.TestComplexKeysShardingAlgorithm 
       keyGenerator:
         column: item_id
-        className: io.shardingsphere.core.keygen.DefaultKeyGenerator
+        className: io.shardingsphere.core.keygen.SnowflakeKeyGenerator
     t_place:
       actualDataNodes: db${0..1}.t_place
       tableStrategy: 
diff --git a/sharding-core/src/test/resources/yaml/sharding-rule.yaml b/sharding-core/src/test/resources/yaml/sharding-rule.yaml
index 7b422a9cbb90d44bf9a8bde753003fe766f9597f..c0d89949560d760cde3b1640b7905764db072da1 100644
--- a/sharding-core/src/test/resources/yaml/sharding-rule.yaml
+++ b/sharding-core/src/test/resources/yaml/sharding-rule.yaml
@@ -63,7 +63,7 @@ shardingRule:
           algorithmExpression: t_order_${order_id % 2}
       keyGenerator:
         column: order_id
-        className: io.shardingsphere.core.keygen.DefaultKeyGenerator
+        className: io.shardingsphere.core.keygen.SnowflakeKeyGenerator
       logicIndex: order_index
     t_order_item:
       actualDataNodes: ds_${0..1}.t_order_item_${0..1}