diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f7fb991..663ff04 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'
-          java-version: '21'
+          java-version: '22'
       - uses: gradle/actions/setup-gradle@v3
         with:
           gradle-home-cache-cleanup: true
@@ -45,7 +45,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'
-          java-version: '21'
+          java-version: '22'
       - uses: gradle/actions/setup-gradle@v3
         with:
           gradle-home-cache-cleanup: true
@@ -67,7 +67,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'
-          java-version: '21'
+          java-version: '22'
       - uses: gradle/actions/setup-gradle@v3
         with:
           gradle-home-cache-cleanup: true
diff --git a/.github/workflows/deploy-website.yml b/.github/workflows/deploy-website.yml
index d60fcef..585fd2e 100644
--- a/.github/workflows/deploy-website.yml
+++ b/.github/workflows/deploy-website.yml
@@ -24,7 +24,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'
-          java-version: '21'
+          java-version: '22'
       - uses: gradle/actions/setup-gradle@v3
         with:
           gradle-home-cache-cleanup: true
diff --git a/build-logic/build.gradle.kts b/build-logic/build.gradle.kts
index 08b7b59..fdbc4f4 100644
--- a/build-logic/build.gradle.kts
+++ b/build-logic/build.gradle.kts
@@ -9,7 +9,7 @@ plugins {
 
 kotlin {
     jvmToolchain {
-        languageVersion.set(JavaLanguageVersion.of(21))
+        languageVersion.set(JavaLanguageVersion.of(22))
         vendor.set(JvmVendorSpec.AZUL)
     }
 }
diff --git a/build-logic/src/main/kotlin/io/github/reactivecircus/cache4k/buildlogic/convention/ConventionPlugin.kt b/build-logic/src/main/kotlin/io/github/reactivecircus/cache4k/buildlogic/convention/ConventionPlugin.kt
index 6f8f65d..b71b92f 100644
--- a/build-logic/src/main/kotlin/io/github/reactivecircus/cache4k/buildlogic/convention/ConventionPlugin.kt
+++ b/build-logic/src/main/kotlin/io/github/reactivecircus/cache4k/buildlogic/convention/ConventionPlugin.kt
@@ -117,7 +117,7 @@ private fun Project.configureSubproject() {
 private fun KotlinMultiplatformExtension.configureTargets(project: Project) {
     jvm {
         jvmToolchain {
-            languageVersion.set(JavaLanguageVersion.of(21))
+            languageVersion.set(JavaLanguageVersion.of(22))
             vendor.set(JvmVendorSpec.AZUL)
         }
         compilations.configureEach {