diff --git a/test/integration/BUILD b/test/integration/BUILD
index d00ef6ca405a..8df797ff0fc8 100644
--- a/test/integration/BUILD
+++ b/test/integration/BUILD
@@ -70,6 +70,7 @@ py_binary(
     name = "capture_fuzz_gen",
     srcs = ["capture_fuzz_gen.py"],
     licenses = ["notice"],  # Apache 2
+    python_version = "PY3",
     visibility = ["//visibility:public"],
     deps = [
         ":capture_fuzz_proto_py",