diff --git a/package-lock.json b/package-lock.json
index f90efbd..e6a5f17 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,7 +31,6 @@
       "integrity": "sha512-t8XVUbCJByhVEa1RzO0zS2QzbL3wPY8ot1yUw9noqiSHxJWUwv6jiwm1/MZDPTYtkZH2ZHvdQIRQ5/SjG9XmLw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@11ty/dependency-tree": "^2.0.1",
         "@11ty/eleventy-dev-server": "^1.0.4",
@@ -1614,9 +1613,9 @@
       }
     },
     "node_modules/immutable": {
-      "version": "5.1.5",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.5.tgz",
-      "integrity": "sha512-t7xcm2siw+hlUM68I+UEOK+z84RzmN59as9DZ7P1l0994DKUWV7UXBMQZVxaoMSRQ+PBZbHCOoBt7a2wxOMt+A==",
+      "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"
     },