diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9d3bf3f1..c98466b7 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: '17'
+          java-version: '21'
           cache: 'gradle'
       - name: Build
         run: ./gradlew build
diff --git a/build.gradle.kts b/build.gradle.kts
index 89620afa..64df87d7 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,13 +3,13 @@ import java.io.ByteArrayOutputStream
 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"
 }
 
 subprojects {
     plugins.apply("java-library")
     plugins.apply("maven-publish")
-    plugins.apply("com.github.johnrengelman.shadow")
+    plugins.apply("io.github.goooler.shadow")
 
     group = "${project.property("group")}"
     version = "${project.property("version")}.${commitsSinceLastTag()}"
@@ -21,7 +21,7 @@ subprojects {
 
     java {
         toolchain {
-            languageVersion.set(JavaLanguageVersion.of(17))
+            languageVersion.set(JavaLanguageVersion.of(21))
         }
         withSourcesJar()
     }
@@ -29,7 +29,7 @@ subprojects {
     tasks {
         withType<JavaCompile> {
             options.encoding = "UTF-8"
-            options.release = 17
+            options.release = 21
             options.compilerArgs.add("-Xlint:none")
         }
         jar {
diff --git a/fabric/src/main/resources/fabric.mod.json b/fabric/src/main/resources/fabric.mod.json
index c02eec59..c771f98e 100644
--- a/fabric/src/main/resources/fabric.mod.json
+++ b/fabric/src/main/resources/fabric.mod.json
@@ -29,7 +29,7 @@
     "fabricloader": ">=0.14.21",
     "fabric": "*",
     "minecraft": ">=1.20.0",
-    "java": ">=17"
+    "java": ">=21"
   },
   "custom": {
     "modmenu": {
diff --git a/gradle.properties b/gradle.properties
index f39c429f..11c3f7b5 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,7 +1,7 @@
 org.gradle.jvmargs=-Xmx2G
 group=org.popcraft
 artifactName=Chunky
-version=1.3
+version=1.4
 description=Pre-generates chunks, quickly, efficiently, and safely
 github=https://github.com/pop4959/Chunky
 author=pop4959