diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 54a142971..2577c9d61 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,5 +56,8 @@ jobs:
           java-package: jre
       - name: Install Dependencies
         run: npm install
+      - run: cd node_modules && cd minecraft-data && mv minecraft-data minecraft-data-old && git clone -b pc_1_21_11 https://github.com/PrismarineJS/minecraft-data --depth 1 && node bin/generate_data.js
+      - run: curl -o node_modules/protodef/src/serializer.js https://raw.githubusercontent.com/extremeheat/node-protodef/refs/heads/dlog/src/serializer.js && curl -o node_modules/protodef/src/compiler.js https://raw.githubusercontent.com/extremeheat/node-protodef/refs/heads/dlog/src/compiler.js
+
       - name: Start Tests
         run: npm run mocha_test -- -g ${{ matrix.mcVersion }}v
diff --git a/docs/README.md b/docs/README.md
index a795263fd..7240f5f4a 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -17,7 +17,7 @@ First time using Node.js? You may want to start with the [tutorial](tutorial.md)
 
 ## Features
 
- * Supports Minecraft 1.8 to 1.21.8 (1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17, 1.18, 1.19, 1.20, 1.21.8) <!--version-->
+ * Supports Minecraft 1.8 to 1.21.11 (1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17, 1.18, 1.19, 1.20, 1.21.8, 1.21.11) <!--version-->
  * Entity knowledge and tracking.
  * Block knowledge. You can query the world around you. Milliseconds to find any block.
  * Physics and movement - handle all bounding boxes
diff --git a/lib/version.js b/lib/version.js
index 6f327098c..1a9c825d6 100644
--- a/lib/version.js
+++ b/lib/version.js
@@ -1,4 +1,4 @@
-const testedVersions = ['1.8.8', '1.9.4', '1.10.2', '1.11.2', '1.12.2', '1.13.2', '1.14.4', '1.15.2', '1.16.5', '1.17.1', '1.18.2', '1.19', '1.19.2', '1.19.3', '1.19.4', '1.20.1', '1.20.2', '1.20.4', '1.20.6', '1.21.1', '1.21.3', '1.21.4', '1.21.5', '1.21.6', '1.21.8']
+const testedVersions = ['1.8.8', '1.9.4', '1.10.2', '1.11.2', '1.12.2', '1.13.2', '1.14.4', '1.15.2', '1.16.5', '1.17.1', '1.18.2', '1.19', '1.19.2', '1.19.3', '1.19.4', '1.20.1', '1.20.2', '1.20.4', '1.20.6', '1.21.1', '1.21.3', '1.21.4', '1.21.5', '1.21.6', '1.21.8', '1.21.11']
 module.exports = {
 
   testedVersions,
diff --git a/package.json b/package.json
index 654481e7a..698932507 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "license": "MIT",
   "dependencies": {
     "minecraft-data": "^3.98.0",
-    "minecraft-protocol": "^1.61.0",
+    "minecraft-protocol": "github:PrismarineJS/node-minecraft-protocol#pc1_21_11",
     "prismarine-biome": "^1.1.1",
     "prismarine-block": "^1.22.0",
     "prismarine-chat": "^1.7.1",