diff --git a/package-lock.json b/package-lock.json
index 440f7cef1cb4..34afa8ba7084 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
         "@webref/events": "file:packages/events",
         "@webref/idl": "file:packages/idl",
         "css-tree": "3.1.0",
-        "reffy": "18.7.1",
+        "reffy": "18.7.3",
         "rimraf": "6.0.1",
         "strudy": "^3.2.0",
         "webidl2": "24.4.1"
@@ -2375,9 +2375,9 @@
       }
     },
     "node_modules/reffy": {
-      "version": "18.7.1",
-      "resolved": "https://registry.npmjs.org/reffy/-/reffy-18.7.1.tgz",
-      "integrity": "sha512-8OkU2WQpoQSdq9NTxJKm0Acagc1UzdKsCblQm/SAh2ko21Y/P+KeIpes8tkOQn4sGS8Y5essL9T3c58GkePacg==",
+      "version": "18.7.3",
+      "resolved": "https://registry.npmjs.org/reffy/-/reffy-18.7.3.tgz",
+      "integrity": "sha512-1GMuB2BdPn5r6hMPQb2LK/0eadmDYQoMJLNuJ7s7xEntL7yQK3B7OpQ0Jp1l+I9ow8FRTJJ8gQe178QogGhxkg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -2387,7 +2387,7 @@
         "fetch-filecache-for-crawling": "5.1.1",
         "puppeteer": "24.9.0",
         "semver": "^7.3.5",
-        "web-specs": "3.51.0",
+        "web-specs": "3.52.0",
         "webidl2": "24.4.1"
       },
       "bin": {
@@ -3069,9 +3069,9 @@
       }
     },
     "node_modules/web-specs": {
-      "version": "3.51.0",
-      "resolved": "https://registry.npmjs.org/web-specs/-/web-specs-3.51.0.tgz",
-      "integrity": "sha512-o+O+MKhKhWGIv9+Y5yfWDuxAA/aTYmqkr3Iy63ymlD58tFOB2nxMKZN6lLfOEqfpRLlZ3Y3l4yfChRKTjnWrIw==",
+      "version": "3.52.0",
+      "resolved": "https://registry.npmjs.org/web-specs/-/web-specs-3.52.0.tgz",
+      "integrity": "sha512-RkJPXOiTuu8yoBKTC8IzdfsbZ83oDM7ElxsIgE1dz9McWbFWnsk3KkerxwWBEJp25Lg0B4Nttg91ICof4N/3xg==",
       "dev": true,
       "license": "CC0-1.0"
     },
@@ -3295,7 +3295,7 @@
     },
     "packages/css": {
       "name": "@webref/css",
-      "version": "6.21.2",
+      "version": "6.21.3",
       "dev": true,
       "license": "MIT",
       "peerDependencies": {
@@ -3316,7 +3316,7 @@
     },
     "packages/idl": {
       "name": "@webref/idl",
-      "version": "3.64.1",
+      "version": "3.64.2",
       "dev": true,
       "license": "MIT",
       "peerDependencies": {
@@ -4999,9 +4999,9 @@
       }
     },
     "reffy": {
-      "version": "18.7.1",
-      "resolved": "https://registry.npmjs.org/reffy/-/reffy-18.7.1.tgz",
-      "integrity": "sha512-8OkU2WQpoQSdq9NTxJKm0Acagc1UzdKsCblQm/SAh2ko21Y/P+KeIpes8tkOQn4sGS8Y5essL9T3c58GkePacg==",
+      "version": "18.7.3",
+      "resolved": "https://registry.npmjs.org/reffy/-/reffy-18.7.3.tgz",
+      "integrity": "sha512-1GMuB2BdPn5r6hMPQb2LK/0eadmDYQoMJLNuJ7s7xEntL7yQK3B7OpQ0Jp1l+I9ow8FRTJJ8gQe178QogGhxkg==",
       "dev": true,
       "requires": {
         "ajv": "8.17.1",
@@ -5010,7 +5010,7 @@
         "fetch-filecache-for-crawling": "5.1.1",
         "puppeteer": "24.9.0",
         "semver": "^7.3.5",
-        "web-specs": "3.51.0",
+        "web-specs": "3.52.0",
         "webidl2": "24.4.1"
       }
     },
@@ -5496,9 +5496,9 @@
       }
     },
     "web-specs": {
-      "version": "3.51.0",
-      "resolved": "https://registry.npmjs.org/web-specs/-/web-specs-3.51.0.tgz",
-      "integrity": "sha512-o+O+MKhKhWGIv9+Y5yfWDuxAA/aTYmqkr3Iy63ymlD58tFOB2nxMKZN6lLfOEqfpRLlZ3Y3l4yfChRKTjnWrIw==",
+      "version": "3.52.0",
+      "resolved": "https://registry.npmjs.org/web-specs/-/web-specs-3.52.0.tgz",
+      "integrity": "sha512-RkJPXOiTuu8yoBKTC8IzdfsbZ83oDM7ElxsIgE1dz9McWbFWnsk3KkerxwWBEJp25Lg0B4Nttg91ICof4N/3xg==",
       "dev": true
     },
     "webidl-conversions": {
diff --git a/package.json b/package.json
index 48e716d62e4a..0ac51b0e95ab 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "@webref/events": "file:packages/events",
     "@webref/idl": "file:packages/idl",
     "css-tree": "3.1.0",
-    "reffy": "18.7.1",
+    "reffy": "18.7.3",
     "rimraf": "6.0.1",
     "strudy": "^3.2.0",
     "webidl2": "24.4.1"