diff --git a/package-lock.json b/package-lock.json
index 6f7bde8..9d6c4d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,6 @@
         "nhsuk-frontend": "^10.3.1",
         "nhsuk-prototype-kit": "^8.0.1"
       },
-      "devDependencies": {},
       "engines": {
         "node": "^22.11.0 || ^24.11.0"
       }
@@ -2712,9 +2711,9 @@
       "license": "ISC"
     },
     "node_modules/immutable": {
-      "version": "3.8.2",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-3.8.2.tgz",
-      "integrity": "sha512-15gZoQ38eYjEjxkorfbcgBKBL6R7T459OuK+CpcWt7O3KF4uPCx2tD0uFETlUDIyo+1789crbMhTvQBSR5yBMg==",
+      "version": "3.8.3",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-3.8.3.tgz",
+      "integrity": "sha512-AUY/VyX0E5XlibOmWt10uabJzam1zlYjwiEgQSDc5+UIkFNaF9WM0JxXKaNMGf+F/ffUF+7kRKXM9A7C0xXqMg==",
       "license": "MIT",
       "engines": {
         "node": ">=0.10.0"
@@ -3795,9 +3794,9 @@
       }
     },
     "node_modules/sass-embedded/node_modules/immutable": {
-      "version": "5.1.4",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.4.tgz",
-      "integrity": "sha512-p6u1bG3YSnINT5RQmx/yRZBpenIl30kVxkTLDyHLIMk0gict704Q9n+thfDI7lTRm9vXdDYutVzXhzcThxTnXA==",
+      "version": "5.1.5",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.5.tgz",
+      "integrity": "sha512-t7xcm2siw+hlUM68I+UEOK+z84RzmN59as9DZ7P1l0994DKUWV7UXBMQZVxaoMSRQ+PBZbHCOoBt7a2wxOMt+A==",
       "license": "MIT"
     },
     "node_modules/sass-embedded/node_modules/supports-color": {
@@ -3830,9 +3829,9 @@
       }
     },
     "node_modules/sass/node_modules/immutable": {
-      "version": "5.1.4",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.4.tgz",
-      "integrity": "sha512-p6u1bG3YSnINT5RQmx/yRZBpenIl30kVxkTLDyHLIMk0gict704Q9n+thfDI7lTRm9vXdDYutVzXhzcThxTnXA==",
+      "version": "5.1.5",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.5.tgz",
+      "integrity": "sha512-t7xcm2siw+hlUM68I+UEOK+z84RzmN59as9DZ7P1l0994DKUWV7UXBMQZVxaoMSRQ+PBZbHCOoBt7a2wxOMt+A==",
       "license": "MIT"
     },
     "node_modules/sass/node_modules/readdirp": {