diff --git a/backend/package-lock.json b/backend/package-lock.json
index 5fe5750..0729ea7 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -35,7 +35,7 @@
         "mocha": "^11.7.5",
         "moment": "^2.30.1",
         "mongodb": "^7.1.0",
-        "multer": "^2.1.1",
+        "multer": "2.1.1",
         "node-id3": "^0.2.9",
         "node-schedule": "^2.1.1",
         "openid-client": "^6.8.2",
diff --git a/backend/package.json b/backend/package.json
index b56d5dc..c18b6ce 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -49,7 +49,7 @@
     "mocha": "^11.7.5",
     "moment": "^2.30.1",
     "mongodb": "^7.1.0",
-    "multer": "^2.1.1",
+    "multer": "2.1.1",
     "node-id3": "^0.2.9",
     "node-schedule": "^2.1.1",
     "openid-client": "^6.8.2",
diff --git a/package.json b/package.json
index 2b2053e..a4074b3 100644
--- a/package.json
+++ b/package.json
@@ -85,6 +85,7 @@
       "@angular/common": "21.2.0",
       "@angular/core": "21.2.0"
     },
+    "immutable": "5.1.5",
     "serialize-javascript": "7.0.3",
     "tmp": "0.2.5"
   }