diff --git a/proto/Android.bp b/proto/Android.bp
index 8e24b50..a36f7a5 100644
--- a/proto/Android.bp
+++ b/proto/Android.bp
@@ -24,4 +24,6 @@
     srcs: ["src/**/*.proto"],
     no_framework_libs: true,
     jarjar_rules: "jarjar-rules.txt",
+    // Pin java_version until jarjar is certified to support later versions. http://b/72703434
+    java_version: "1.8",
 }
\ No newline at end of file