diff --git a/compare-angular/package-lock.json b/compare-angular/package-lock.json
index c09a06a..16d1609 100644
--- a/compare-angular/package-lock.json
+++ b/compare-angular/package-lock.json
@@ -11807,9 +11807,9 @@
       "license": "MIT"
     },
     "node_modules/immutable": {
-      "version": "5.1.6",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.6.tgz",
-      "integrity": "sha512-q1swsS8K7L8usSHuOqF2TAoCCkonYz0SG38wLAggaa4Wml70zixIvt2ql4coQ2C2B3hTjltJry4r6bULwgAXLQ==",
+      "version": "5.1.9",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.9.tgz",
+      "integrity": "sha512-m8nVez3rwrgmWxtLMt1ZYXB2Lv7OKYn/disyxAlSDYAlKSlFoPPfIAmAM/M5xqL4m4C/wAPw7S2/CNaUii1Hxg==",
       "dev": true,
       "license": "MIT"
     },