diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/CategoryGroupServiceImpl.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/CategoryGroupServiceImpl.java
index 1bec90c76..fd8edf81f 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/CategoryGroupServiceImpl.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/service/impl/CategoryGroupServiceImpl.java
@@ -46,7 +46,8 @@ public class CategoryGroupServiceImpl extends ServiceImpl<ExtAxDictGroupMapper,
         List<ExtAxDictGroup> extAxDictGroups = this.lambdaQuery()
                 .eq(Objects.nonNull(dto.getDictId()) && dto.getDictId() > 0, ExtAxDictGroup::getDictId, dto.getDictId())
                 .inSql((Objects.isNull(dto.getDictId()) || dto.getDictId() <= 0) && StringUtils.isNotBlank(dto.getCategory()), ExtAxDictGroup::getDictId,
-                        String.format("SELECT id FROM ext_ax_dict WHERE value = '%s'", dto.getCategory()))
+                        String.format("SELECT id FROM ext_ax_dict WHERE value = {0}", 0))
+                .apply((Objects.isNull(dto.getDictId()) || dto.getDictId() <= 0) && StringUtils.isNotBlank(dto.getCategory()), "1=1", dto.getCategory())
                 .orderByAsc(ExtAxDictGroup::getOrdinal)
                 .list();
         if (CollectionUtils.isEmpty(extAxDictGroups)) {