diff --git a/index.js b/index.js
index e8e639e..d59a6ef 100644
--- a/index.js
+++ b/index.js
@@ -13,7 +13,7 @@ const { mkdirSync, writeFileSync, readFileSync } = require("fs");
 const DEFAULT_DOCKER_TAG = "latest";
 const DEFAULT_DOCKER_IMAGE = "softprops/lambda-rust";
 const RUST_RUNTIME = "rust";
-const BASE_RUNTIME = "provided";
+const BASE_RUNTIME = "provided.al2";
 const NO_OUTPUT_CAPTURE = { stdio: ["ignore", process.stdout, process.stderr] };
 const MUSL_PLATFORMS = ["darwin", "win32", "linux"];