diff --git a/package.json b/package.json
index 28ba0954..d9bb4f31 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@unocha/hpc-api-core",
-  "version": "4.4.1",
+  "version": "4.4.2",
   "description": "Core libraries supporting HPC.Tools API Backend",
   "license": "Apache-2.0",
   "private": false,
diff --git a/src/db/models/planYear.ts b/src/db/models/planYear.ts
index b60c7095..e440e889 100644
--- a/src/db/models/planYear.ts
+++ b/src/db/models/planYear.ts
@@ -26,5 +26,5 @@ export default defineLegacyVersionedModel({
     },
   },
   idField: 'id',
-  softDeletionEnabled: true,
+  softDeletionEnabled: false,
 });