diff --git a/src/doc/rustc-dev-guide/ci/install.sh b/src/doc/rustc-dev-guide/ci/install.sh
index eca1b5cdff19..80f8de4e8a51 100755
--- a/src/doc/rustc-dev-guide/ci/install.sh
+++ b/src/doc/rustc-dev-guide/ci/install.sh
@@ -21,4 +21,4 @@ function cargo_install() {
 }
 
 cargo_install mdbook 0.2
-cargo_install mdbook-linkcheck 0.2.1
+cargo_install mdbook-linkcheck 0.2