diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 37a217d2a0452..bd1d49fb24dc3 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -105,7 +105,7 @@ contributions to the compiler and the standard library. It also lists some
 really useful commands to the build system (`./x.py`), which could save you a
 lot of time.
 
-[rustcguidebuild]: https://rust-lang.github.io/rustc-guide/how-to-build-and-run.html
+[rustcguidebuild]: https://rust-lang.github.io/rustc-guide/building/how-to-build-and-run.html
 
 ## Pull Requests
 [pull-requests]: #pull-requests
diff --git a/src/librustc/infer/region_constraints/README.md b/src/librustc/infer/region_constraints/README.md
index ea7fffe9dc1c6..d789fb0de1093 100644
--- a/src/librustc/infer/region_constraints/README.md
+++ b/src/librustc/infer/region_constraints/README.md
@@ -1,3 +1,3 @@
 For info on how the current borrowck works, see the [rustc guide].
 
-[rustc guide]: https://rust-lang.github.io/rustc-guide/mir/borrowck.html
+[rustc guide]: https://rust-lang.github.io/rustc-guide/borrow_check.html