diff --git a/xos/synchronizer/config.yaml b/xos/synchronizer/config.yaml
index 0fa2210..991d149 100755
--- a/xos/synchronizer/config.yaml
+++ b/xos/synchronizer/config.yaml
@@ -15,7 +15,7 @@
 
 
 name: dt-workflow-driver
-core_version: ">=2.2.1"
+core_version: ">=4.0.0"
 required_models:
   - DtWorkflowDriverService
   - DtWorkflowDriverServiceInstance