diff --git a/cargo-lock-updater b/cargo-lock-updater
index 1a2fbee..8f5a13e 100755
--- a/cargo-lock-updater
+++ b/cargo-lock-updater
@@ -1,6 +1,5 @@
 #!/usr/bin/env zsh
-
-find . -type f -name 'Cargo.lock' -print0 | while IFS=$'\0' read -r -d '' file; do
+for file in $(git ls-files | grep Cargo.lock); do
 	(cd "$(dirname "$file")" && cargo update -wq)
 	git add $file
 done