diff --git a/README.md b/README.md
index ef8939a7d..a6679236b 100644
--- a/README.md
+++ b/README.md
@@ -92,7 +92,7 @@ load("@io_bazel_rules_kotlin//kotlin:kotlin.bzl", "define_kt_toolchain")
 define_kt_toolchain(
     name = "kotlin_toolchain",
     api_version = KOTLIN_LANGUAGE_LEVEL,  # "1.1", "1.2", or "1.3"
-    jvm_target = JAVA_LANGUAGE_LEVEL, # "1.6" or "1.8"
+    jvm_target = JAVA_LANGUAGE_LEVEL, # "1.6", "1.8", "9", "10", "11", or "12",
     language_version = KOTLIN_LANGUAGE_LEVEL,  # "1.1", "1.2", or "1.3"
 )
 ```