diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cff5c13..813e9ca 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-java@v4
         with:
-          java-version: 11
+          java-version: 17
           distribution: temurin
       - name: Build with Gradle
         run: ./gradlew build
diff --git a/build.gradle b/build.gradle
index 0cfe925..5bf31a7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ allprojects {
     }
     pluginManager.withPlugin('java') {
         java {
-            sourceCompatibility = JavaVersion.VERSION_11
+            sourceCompatibility = JavaVersion.VERSION_17
             withSourcesJar()
             withJavadocJar()
         }