diff --git a/antora/package-lock.json b/antora/package-lock.json
index a3c80143..5e971f90 100644
--- a/antora/package-lock.json
+++ b/antora/package-lock.json
@@ -14,7 +14,7 @@
       },
       "devDependencies": {
         "antora": "^3.1.12",
-        "toml": "^3.0.0"
+        "toml": "^5.0.0"
       },
       "engines": {
         "node": "24"
@@ -2108,10 +2108,14 @@
       }
     },
     "node_modules/toml": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/toml/-/toml-3.0.0.tgz",
-      "integrity": "sha512-y/mWCZinnvxjTKYhJ+pYxwD0mRLVvOtdS2Awbgxln6iEnt4rk0yBxeSBHkGJcPucRiG0e55mwWp+g/05rsrd6w==",
-      "dev": true
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/toml/-/toml-5.0.0.tgz",
+      "integrity": "sha512-bsqEd+g7fzlrw7LEynQ6W6aOK/lTOlepz5x1sJyIV9fTZVJS2Q76nuju6FK+gZhW5bUpvB7mCEqdR0u4WziMFw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=20"
+      }
     },
     "node_modules/typed-array-buffer": {
       "version": "1.0.3",
diff --git a/antora/package.json b/antora/package.json
index ba0a00f4..cee36e77 100644
--- a/antora/package.json
+++ b/antora/package.json
@@ -9,7 +9,7 @@
   "homepage": "https://enterprise-contract.github.io/enterprise-contract.github.io/",
   "devDependencies": {
     "antora": "^3.1.12",
-    "toml": "^3.0.0"
+    "toml": "^5.0.0"
   },
   "overrides": {
     "glob-parent": "6.0.2"