diff --git a/antora-ui/package-lock.json b/antora-ui/package-lock.json
index 7b17638..0a5a5f0 100644
--- a/antora-ui/package-lock.json
+++ b/antora-ui/package-lock.json
@@ -2329,13 +2329,21 @@
       "dev": true
     },
     "copy-props": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/copy-props/-/copy-props-2.0.4.tgz",
-      "integrity": "sha512-7cjuUME+p+S3HZlbllgsn2CDwS+5eCCX16qBgNC4jgSTf49qR1VKy/Zhl400m0IQXl/bPGEVqncgUUMjrr4s8A==",
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/copy-props/-/copy-props-2.0.5.tgz",
+      "integrity": "sha512-XBlx8HSqrT0ObQwmSzM7WE5k8FxTV75h1DX1Z3n6NhQ/UYYAvInWYmG06vFt7hQZArE2fuO62aihiWIVQwh1sw==",
       "dev": true,
       "requires": {
-        "each-props": "^1.3.0",
-        "is-plain-object": "^2.0.1"
+        "each-props": "^1.3.2",
+        "is-plain-object": "^5.0.0"
+      },
+      "dependencies": {
+        "is-plain-object": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-5.0.0.tgz",
+          "integrity": "sha512-VRSzKkbMm5jMDoKLbltAkFQ5Qr7VDiTFGXxYFXXowVj387GeGNOCsOH6Msy00SGZ3Fp84b1Naa1psqgcCIEP5Q==",
+          "dev": true
+        }
       }
     },
     "core-js": {