diff --git a/.gitattributes b/.gitattributes
index 9ebeba4883..32985d0606 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,5 +1,6 @@
 *.a binary
 *.patch binary
+Cargo.lock binary
 # Default conflict marker size is 7 which causes some of the headings in
 # release-notes.txt to trigger git diff --check: 'leftover conflict marker'
 # when the heading is exactly 7 characters long.