diff --git a/engine/build.gradle.kts b/engine/build.gradle.kts
index c1cae18..15c6725 100644
--- a/engine/build.gradle.kts
+++ b/engine/build.gradle.kts
@@ -84,7 +84,7 @@ dependencies {
 
 java {
   toolchain {
-    languageVersion.set(JavaLanguageVersion.of(8))
+    languageVersion.set(JavaLanguageVersion.of(17))
   }
 }
 
diff --git a/integrationtest/build.gradle.kts b/integrationtest/build.gradle.kts
index 50e18f2..33abf74 100644
--- a/integrationtest/build.gradle.kts
+++ b/integrationtest/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
 
 java {
   toolchain {
-    languageVersion.set(JavaLanguageVersion.of(8))
+    languageVersion.set(JavaLanguageVersion.of(17))
   }
 }