diff --git a/src/govoplan_notifications/backend/manifest.py b/src/govoplan_notifications/backend/manifest.py
index fafaf80..19b9a83 100644
--- a/src/govoplan_notifications/backend/manifest.py
+++ b/src/govoplan_notifications/backend/manifest.py
@@ -86,7 +86,7 @@ manifest = ModuleManifest(
     name=MODULE_NAME,
     version=MODULE_VERSION,
     required_capabilities=(CAPABILITY_AUTH_PRINCIPAL_RESOLVER, CAPABILITY_AUTH_PERMISSION_EVALUATOR),
-    optional_dependencies=("mail", "tasks", "portal", "workflow", "calendar", "scheduling"),
+    optional_dependencies=("mail", "tasks", "portal", "workflow_engine", "calendar", "scheduling"),
     provides_interfaces=(ModuleInterfaceProvider(name="notifications.dispatch", version="0.1.8"),),
     permissions=PERMISSIONS,
     role_templates=ROLE_TEMPLATES,