diff --git a/backend/package.json b/backend/package.json
index 3d7577e..db6f1b2 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -63,6 +63,7 @@
     "joi": "^18.0.1",
     "multer": "^2.0.2",
     "mysql2": "^3.15.3",
+    "ms": "^2.1.3",
     "nest-winston": "^1.10.2",
     "nodemailer": "^8.0.3",
     "opossum": "^9.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c4da1c9..8f91dce 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -156,6 +156,9 @@ importers:
       joi:
         specifier: ^18.0.1
         version: 18.0.2
+      ms:
+        specifier: ^2.1.3
+        version: 2.1.3
       multer:
         specifier: '>=2.1.1'
         version: 2.1.1