diff --git a/probe/package-lock.json b/probe/package-lock.json
index ebc48e1..e5067d5 100644
--- a/probe/package-lock.json
+++ b/probe/package-lock.json
@@ -6,7 +6,7 @@
     "": {
       "name": "tunnelfetch-probe",
       "devDependencies": {
-        "@noble/ciphers": "^2.3.0",
+        "@noble/ciphers": "^2.4.0",
         "@noble/post-quantum": "^0.7.0",
         "wrangler": "^4.123.0"
       }
@@ -1144,9 +1144,9 @@
       }
     },
     "node_modules/@noble/ciphers": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-2.3.0.tgz",
-      "integrity": "sha512-Clu/xdfgVTf9o7ngLOURaxePwR0j8sjclKEtVij10/jGulwFsPWCvvRgG/XjUVf8Nei+jLG6uwyXzUTGY1DQrw==",
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-2.4.0.tgz",
+      "integrity": "sha512-AnjFn0Jv92laAkvMrghlFZq4qQCIN/4DxFV/eooqtC2YTjB7kBeLMS2T9KJX4Dn+ZVXLOwK0lSgqDtx9gvxtiw==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -1203,6 +1203,19 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
+    "node_modules/@noble/post-quantum/node_modules/@noble/ciphers": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-2.3.0.tgz",
+      "integrity": "sha512-Clu/xdfgVTf9o7ngLOURaxePwR0j8sjclKEtVij10/jGulwFsPWCvvRgG/XjUVf8Nei+jLG6uwyXzUTGY1DQrw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 20.19.0"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/@poppinss/colors": {
       "version": "4.1.6",
       "resolved": "https://registry.npmjs.org/@poppinss/colors/-/colors-4.1.6.tgz",
diff --git a/probe/package.json b/probe/package.json
index 8090ab6..b7baaee 100644
--- a/probe/package.json
+++ b/probe/package.json
@@ -4,7 +4,7 @@
   "type": "module",
   "description": "Edge capability probe. Not published; results feed the offline test suite.",
   "devDependencies": {
-    "@noble/ciphers": "^2.3.0",
+    "@noble/ciphers": "^2.4.0",
     "@noble/post-quantum": "^0.7.0",
     "wrangler": "^4.123.0"
   }