diff --git a/package-lock.json b/package-lock.json
index a281a54c21fd..ae4051963d6c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
         "@webref/events": "file:packages/events",
         "@webref/idl": "file:packages/idl",
         "css-tree": "3.1.0",
-        "reffy": "19.1.3",
+        "reffy": "19.1.4",
         "rimraf": "6.0.1",
         "strudy": "^3.2.1",
         "webidl2": "24.5.0"
@@ -2189,9 +2189,9 @@
       }
     },
     "node_modules/reffy": {
-      "version": "19.1.3",
-      "resolved": "https://registry.npmjs.org/reffy/-/reffy-19.1.3.tgz",
-      "integrity": "sha512-EShhImt9Dh4HwJYO7HyU1stAzWUF6PWm9jtZNLutYJgQmv4p1V88KADvkAbxcus+63YqnTO+aw38iBALjK4rZg==",
+      "version": "19.1.4",
+      "resolved": "https://registry.npmjs.org/reffy/-/reffy-19.1.4.tgz",
+      "integrity": "sha512-84N2srh/XxxGb3QkNHFcSW0CKQUALeEPFZDSBgSgDbqf7CfBWrcnAOU2QrWerc2GGS5a9gp3B72P7HnYYGuFpQ==",
       "dev": true,
       "dependencies": {
         "ajv": "8.17.1",
@@ -3075,7 +3075,7 @@
       "dev": true,
       "license": "MIT",
       "peerDependencies": {
-        "webidl2": "^24.4.1"
+        "webidl2": "^24.5.0"
       }
     }
   },
@@ -4595,9 +4595,9 @@
       }
     },
     "reffy": {
-      "version": "19.1.3",
-      "resolved": "https://registry.npmjs.org/reffy/-/reffy-19.1.3.tgz",
-      "integrity": "sha512-EShhImt9Dh4HwJYO7HyU1stAzWUF6PWm9jtZNLutYJgQmv4p1V88KADvkAbxcus+63YqnTO+aw38iBALjK4rZg==",
+      "version": "19.1.4",
+      "resolved": "https://registry.npmjs.org/reffy/-/reffy-19.1.4.tgz",
+      "integrity": "sha512-84N2srh/XxxGb3QkNHFcSW0CKQUALeEPFZDSBgSgDbqf7CfBWrcnAOU2QrWerc2GGS5a9gp3B72P7HnYYGuFpQ==",
       "dev": true,
       "requires": {
         "ajv": "8.17.1",
diff --git a/package.json b/package.json
index eecffd8e7947..0555fadc6f60 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "@webref/events": "file:packages/events",
     "@webref/idl": "file:packages/idl",
     "css-tree": "3.1.0",
-    "reffy": "19.1.3",
+    "reffy": "19.1.4",
     "rimraf": "6.0.1",
     "strudy": "^3.2.1",
     "webidl2": "24.5.0"