diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fa9c970a..735b52df 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,10 +49,10 @@ jobs:
       with:
         node-version: 24.x
     - name: Setup Java JDK
-      uses: actions/setup-java@v1.4.3
+      uses: actions/setup-java@v4
       with:
-        java-version: '21'
-        distribution: 'adopt'
+        distribution: 'temurin'
+        java-version: ${{ matrix.mcVersion == '26.1.2' && '26' || '21' }}
     - name: Install dependencies
       run: npm install
     - name: Run tests
diff --git a/docs/README.md b/docs/README.md
index f1cddc60..c03c6ef9 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -18,7 +18,7 @@ Parse and serialize minecraft packets, plus authentication and encryption.
    1.15 (1.15, 1.15.1, 1.15.2), 1.16 (20w13b, 20w14a, 1.16-rc1, 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5),
    1.17 (21w07a, 1.17, 1.17.1), 1.18 (1.18, 1.18.1 and 1.18.2),
    1.19 (1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4), 1.20 (1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6),
-   1.21, 1.21.1, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.8, 1.21.9, 1.21.11
+   1.21, 1.21.1, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.8, 1.21.9, 1.21.11, 26.1.2
 <!--add_next_version_above-->
 
  * Parses all packets and emits events with packet fields as JavaScript
diff --git a/package.json b/package.json
index 88e351ad..29f6a875 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "debug": "^4.3.2",
     "endian-toggle": "^0.0.0",
     "lodash.merge": "^4.3.0",
-    "minecraft-data": "^3.78.0",
+    "minecraft-data": "github:mneuhaus/node-minecraft-data#add-26.1.2-data-wrapper",
     "minecraft-folder-path": "^1.2.0",
     "node-fetch": "^2.6.1",
     "node-rsa": "^0.4.2",
diff --git a/src/version.js b/src/version.js
index 51312c21..385914b4 100644
--- a/src/version.js
+++ b/src/version.js
@@ -1,6 +1,6 @@
 'use strict'
 
 module.exports = {
-  defaultVersion: '1.21.11',
-  supportedVersions: ['1.7', '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', '1.20.1', '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', '1.21.9', '1.21.11']
+  defaultVersion: '26.1.2',
+  supportedVersions: ['1.7', '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', '1.20.1', '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', '1.21.9', '1.21.11', '26.1.2']
 }
diff --git a/test/packetTest.js b/test/packetTest.js
index a5d7e918..db84ad02 100644
--- a/test/packetTest.js
+++ b/test/packetTest.js
@@ -73,7 +73,11 @@ function getFixedPacketPayload (version, packetName) {
     }
   }
   if (packetName === 'declare_recipes') {
-    if (version['>=']('1.21.3')) {
+    if (version['>=']('26.1.2')) {
+      return {
+        data: Buffer.alloc(0)
+      }
+    } else if (version['>=']('1.21.3')) {
       return {
         recipes: [
           {
@@ -554,6 +558,8 @@ for (const supportedVersion of mc.supportedVersions) {
     }
 
     function assertPacketsMatch (p1, p2) {
+      p1 = p1 || {}
+      p2 = p2 || {}
       packetInfo.forEach(function (field) {
         assert.deepEqual(p1[field], p2[field])
       })
diff --git a/test/serverTest.js b/test/serverTest.js
index b2e51540..b7885dd5 100644
--- a/test/serverTest.js
+++ b/test/serverTest.js
@@ -500,6 +500,10 @@ for (const supportedVersion of mc.supportedVersions) {
     })
 
     it('supports bundle packet', function (done) {
+      const updateTimeFields = mcData.protocol.play.toClient.types.packet_update_time[1].map(field => field.name)
+      const updateTimePacket = updateTimeFields.includes('clockUpdates')
+        ? { gameTime: 1, clockUpdates: Buffer.alloc(0) }
+        : { age: 1, time: 2 }
       const server = mc.createServer({
         'online-mode': false,
         version: version.minecraftVersion,
@@ -511,7 +515,7 @@ for (const supportedVersion of mc.supportedVersions) {
         })
         client.write('login', loginPacket(client, server))
         client.writeBundle([
-          ['update_time', { age: 1, time: 2 }],
+          ['update_time', updateTimePacket],
           ['close_window', { windowId: 0 }]
         ])
       })