diff --git a/api/build.gradle b/api/build.gradle
index 690e28db07..293b588650 100644
--- a/api/build.gradle
+++ b/api/build.gradle
@@ -8,6 +8,11 @@ plugins {
 group = 'run.halo.app'
 description = 'API of halo project, connecting by other projects.'
 
+java {
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
+}
+
 compileJava.options.encoding = "UTF-8"
 compileTestJava.options.encoding = "UTF-8"
 javadoc.options.encoding = "UTF-8"
diff --git a/application/build.gradle b/application/build.gradle
index d6d9a74377..2b760e5441 100644
--- a/application/build.gradle
+++ b/application/build.gradle
@@ -18,9 +18,8 @@ compileJava.options.encoding = 'UTF-8'
 compileTestJava.options.encoding = 'UTF-8'
 
 java {
-    toolchain {
-        languageVersion = JavaLanguageVersion.of(17)
-    }
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
 }
 
 checkstyle {