diff --git a/tests/WORKSPACE b/tests/WORKSPACE
index 83b4e038..f16c5fba 100644
--- a/tests/WORKSPACE
+++ b/tests/WORKSPACE
@@ -188,8 +188,8 @@ go_download_sdk(
 
 http_archive(
     name = "rules_rust",
-    sha256 = "24b378ed97006f1f7012be498a26f81ddb9901318b88380aee8522fdfbe8b735",
-    urls = ["https://github.com/bazelbuild/rules_rust/releases/download/0.42.1/rules_rust-v0.42.1.tar.gz"],
+    sha256 = "4a7ce870dbd0a7560ad535bf69456147a45244ea35976462944d55db45859cad",
+    urls = ["https://github.com/bazelbuild/rules_rust/releases/download/0.43.0/rules_rust-v0.43.0.tar.gz"],
 )
 
 load("@rules_rust//rust:repositories.bzl", "rules_rust_dependencies", "rust_register_toolchains")