diff --git a/website/package-lock.json b/website/package-lock.json
index 3fc26afce9..de55dd92e4 100644
--- a/website/package-lock.json
+++ b/website/package-lock.json
@@ -10,6 +10,7 @@
       "dependencies": {
         "@astrojs/starlight": "^0.37.0",
         "astro": "^5.6.1",
+        "defu": "^6.1.5",
         "sharp": "^0.34.0",
         "starlight-links-validator": "^0.19.0",
         "starlight-versions": "^0.7.0"
@@ -2917,9 +2918,9 @@
       }
     },
     "node_modules/defu": {
-      "version": "6.1.4",
-      "resolved": "https://registry.npmjs.org/defu/-/defu-6.1.4.tgz",
-      "integrity": "sha512-mEQCMmwJu317oSz8CwdIOdwf3xMif1ttiM8LTufzc3g6kR+9Pe236twL8j3IYT1F7GfRgGcW6MWxzZjLIkuHIg==",
+      "version": "6.1.5",
+      "resolved": "https://registry.npmjs.org/defu/-/defu-6.1.5.tgz",
+      "integrity": "sha512-pwdBJxJuJXmqrLO6s0VBmfbRz+G7FUzkjldAsdi9Yrv86mPyzq0ll1o8+8gB4Gsr6GJHbK1Lh3ngllgTInDCjA==",
       "license": "MIT"
     },
     "node_modules/dequal": {
diff --git a/website/package.json b/website/package.json
index daa0315fb1..827c3e7db1 100644
--- a/website/package.json
+++ b/website/package.json
@@ -11,6 +11,7 @@
   "dependencies": {
     "@astrojs/starlight": "^0.37.0",
     "astro": "^5.6.1",
+    "defu": "^6.1.5",
     "sharp": "^0.34.0",
     "starlight-links-validator": "^0.19.0",
     "starlight-versions": "^0.7.0"