diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index d08c822..7d0f407 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -13,11 +13,11 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      - name: Set up JDK 17
+      - name: Set up JDK
         uses: actions/setup-java@v3
         with:
           distribution: 'adopt'
-          java-version: '17'
+          java-version: '21'
 
       - name: Grant execute permission for gradlew
         run: chmod +x ./gradlew
diff --git a/build.gradle b/build.gradle
index d8e9264..698935b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,8 +17,8 @@ dependencies {
 
 java {
     toolchain {
-        sourceCompatibility = '17'
-        targetCompatibility = '17'
+        sourceCompatibility = '21'
+        targetCompatibility = '21'
     }
 }