diff --git a/.github/workflows/websocket-tests.yml b/.github/workflows/websocket-tests.yml
index 5893fc32..0c141b38 100644
--- a/.github/workflows/websocket-tests.yml
+++ b/.github/workflows/websocket-tests.yml
@@ -27,8 +27,19 @@ jobs:
         run: pnpm run lint
 
       - name: Run unit tests
+        if: matrix.node-version != '22.x'
         run: pnpm run test
 
+      - name: Run unit tests with coverage
+        if: matrix.node-version == '22.x'
+        run: pnpm run test:coverage
+
+      - name: Upload coverage to Codecov
+        if: matrix.node-version == '22.x'
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+
       - name: Pull Autobahn Test Suite Docker image
         run: docker pull crossbario/autobahn-testsuite
 
diff --git a/README.md b/README.md
index 263647f9..4887af60 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,8 @@ WebSocket Client & Server Implementation for Node
 
 [ ![Codeship Status for theturtle32/WebSocket-Node](https://codeship.com/projects/70458270-8ee7-0132-7756-0a0cf4fe8e66/status?branch=master)](https://codeship.com/projects/61106)
 
+[![code coverage](https://codecov.io/gh/theturtle32/WebSocket-Node/branch/v2/graph/badge.svg)](https://codecov.io/gh/theturtle32/WebSocket-Node)
+
 Overview
 --------
 This is a (mostly) pure JavaScript implementation of the WebSocket protocol versions 8 and 13 for Node.  There are some example client and server applications that implement various interoperability testing protocols in the "test/scripts" folder.
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 00000000..bf4abf10
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,40 @@
+codecov:
+  require_ci_to_pass: yes
+  notify:
+    wait_for_ci: yes
+
+coverage:
+  precision: 2
+  round: down
+  range: "70...100"
+
+  status:
+    project:
+      default:
+        target: 85%
+        threshold: 1%
+        if_ci_failed: error
+
+    patch:
+      default:
+        target: 80%
+        threshold: 2%
+        if_ci_failed: error
+
+comment:
+  layout: "reach,diff,flags,tree"
+  behavior: default
+  require_changes: yes
+  require_base: no
+  require_head: yes
+
+ignore:
+  - "test/**"
+  - "examples/**"
+  - "bench/**"
+  - "docs/**"
+  - "scripts/**"
+  - "lib/version.js"
+  - "**/*.test.mjs"
+  - "**/*.test.js"
+  - "**/*.bench.mjs"