diff --git a/src/doc/rustc-dev-guide/ci/install.sh b/src/doc/rustc-dev-guide/ci/install.sh
index a5d87a6bc3b2..0a36ff1f9e6f 100644
--- a/src/doc/rustc-dev-guide/ci/install.sh
+++ b/src/doc/rustc-dev-guide/ci/install.sh
@@ -19,5 +19,5 @@ function cargo_install() {
   fi
 }
 
-cargo_install mdbook 0.1.1
+cargo_install mdbook 0.1.5
 cargo_install mdbook-linkcheck 0.1.0