diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ce37224d3..2428514cd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,6 +22,7 @@ jobs:
         node-version:
           - 18
           - 20
+          - 22
 
     services:
       redis:
diff --git a/packages/engine.io-client/test/index.js b/packages/engine.io-client/test/index.js
index 237d199a7..5e481865c 100644
--- a/packages/engine.io-client/test/index.js
+++ b/packages/engine.io-client/test/index.js
@@ -7,8 +7,6 @@ if (env.browser) {
   require("./node");
 }
 
-const Blob = require("blob");
-
 require("./engine.io-client");
 require("./socket");
 require("./transport");
@@ -23,6 +21,6 @@ if (typeof ArrayBuffer !== "undefined") {
 }
 
 // Blob is available in Node.js since v18, but not yet supported by the `engine.io-parser` package
-if (Blob && env.browser) {
+if (typeof Blob === "function" && env.browser) {
   require("./blob");
 }
diff --git a/packages/engine.io/test/common.js b/packages/engine.io/test/common.js
index 136395fbb..4b5d5a595 100644
--- a/packages/engine.io/test/common.js
+++ b/packages/engine.io/test/common.js
@@ -1,3 +1,8 @@
+if (process.env.EIO_CLIENT === "3" && process.versions.node.startsWith("22")) {
+  // FIXME WebSocket error with engine.io-client@3
+  global.WebSocket = null;
+}
+
 const { listen, uServer } = require("..");
 const { Socket } =
   process.env.EIO_CLIENT === "3"