diff --git a/src/govoplan_committee/backend/manifest.py b/src/govoplan_committee/backend/manifest.py
index 4115017..81cb8be 100644
--- a/src/govoplan_committee/backend/manifest.py
+++ b/src/govoplan_committee/backend/manifest.py
@@ -14,7 +14,7 @@ OPTIONAL_DEPENDENCIES = (
     "docs",
     "files",
     "tasks",
-    "workflow",
+    "workflow_engine",
     "approvals",
 )