diff --git a/jps/jps-plugin/build.gradle.kts b/jps/jps-plugin/build.gradle.kts
index 4bea7e8dbb9..60079fe389e 100644
--- a/jps/jps-plugin/build.gradle.kts
+++ b/jps/jps-plugin/build.gradle.kts
@@ -61,6 +61,12 @@ sourceSets {
     }
 }
 
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(11))
+    }
+}
+
 projectTest(parallel = true) {
     // do not replace with compile/runtime dependency,
     // because it forces Intellij reindexing after each compiler change