diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2af7d92..cfd0418 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: '8'
+          java-version: '21'
           cache: 'gradle'
       - name: Build
         run: ./gradlew build
diff --git a/README.md b/README.md
index f65965e..c91d4cc 100644
--- a/README.md
+++ b/README.md
@@ -18,4 +18,4 @@ LWC is the longest-lived single block protection plugin, that protects both the
 Please see our [wiki](https://github.com/pop4959/LWCX/wiki) for important information about setting up and using the plugin.
 
 ### Contributing
-Contributing to LWCX is encouraged, and very easy. Fork the repository, and build using maven. Simply make a pull request explaining your changes, and how they are a beneficial addition to the plugin. Travis will automatically build all pull requests to ensure that they build on OpenJDK 8.
+Contributing to LWCX is encouraged, and very easy. Fork the repository, and build using maven. Simply make a pull request explaining your changes, and how they are a beneficial addition to the plugin. Github Actions will automatically build all pull requests to ensure that they build with OpenJDK 21.
diff --git a/build.gradle.kts b/build.gradle.kts
index a0c15fb..2ce3e94 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,12 +3,12 @@ import java.util.*
 plugins {
     id("java-library")
     id("maven-publish")
-    id("com.github.johnrengelman.shadow") version "8.1.1"
+    id("io.github.goooler.shadow") version "8.1.7"
 }
 
 java {
     toolchain {
-        languageVersion.set(JavaLanguageVersion.of(17))
+        languageVersion.set(JavaLanguageVersion.of(21))
     }
     withSourcesJar()
 }
diff --git a/gradle.properties b/gradle.properties
index b8d3e4a..83036c8 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 org.gradle.jvmargs=-Xmx2G
 group=com.griefcraft
-version=2.3.2
+version=2.4.0
 description=Inventory protection & management utilizing SQLite or MySQL as its backend.
 github=https://github.com/pop4959/LWCX