diff --git a/tools/github/BUILD b/tools/github/BUILD
index 779d1695d3b7c..ae7eae1cf310d 100644
--- a/tools/github/BUILD
+++ b/tools/github/BUILD
@@ -1 +1,10 @@
+load("@rules_python//python:defs.bzl", "py_binary")
+load("@base_pip3//:requirements.bzl", "requirement")
+
 licenses(["notice"])  # Apache 2
+
+py_binary(
+    name = "sync_assignable",
+    srcs = ["sync_assignable.py"],
+    deps = [requirement("pygithub")],
+)
diff --git a/tools/github/sync_assignable.sh b/tools/github/sync_assignable.sh
deleted file mode 100755
index ac11d9ccc3c86..0000000000000
--- a/tools/github/sync_assignable.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/bash
-
-. tools/shell_utils.sh
-
-set -e
-
-python_venv sync_assignable