diff --git a/.gitignore b/.gitignore
index f2e972d..5feb64e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,5 +2,6 @@
 # will have compiled files and executables
 /target/
 
+Cargo.lock
 # These are backup files generated by rustfmt
 **/*.rs.bk