diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8f8924d..10f4ba2 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -782,7 +782,7 @@ jobs:
     - name: Setup Buildtools
       run: |
         wget -O BuildTools.jar https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar
-        java -jar BuildTools.jar --nogui --rev 1.20.6 --remapped 
+        java -jar BuildTools.jar --nogui --rev 1.21 --remapped 
   
     - name: Build Mod
       run: ./gradlew -Pversion=${{ inputs.version }} build