diff --git a/hack/ci/install-darwin-deps.sh b/hack/ci/install-darwin-deps.sh
index 1406098..063a847 100755
--- a/hack/ci/install-darwin-deps.sh
+++ b/hack/ci/install-darwin-deps.sh
@@ -2,3 +2,4 @@
 set -e
 
 brew install protobuf
+brew upgrade rustup || true