diff --git a/_posts/2020-04-05-how-to-contribute-by-cpython-unittest.markdown b/_posts/2020-04-05-how-to-contribute-by-cpython-unittest.markdown
index c037e86b5..321f91ef6 100644
--- a/_posts/2020-04-05-how-to-contribute-by-cpython-unittest.markdown
+++ b/_posts/2020-04-05-how-to-contribute-by-cpython-unittest.markdown
@@ -63,4 +63,4 @@ def ...  # failed tests
 ```
 
 ## Development guide
-For a general introduction to RustPython development, please visit the [RustPython development guide](https://github.com/RustPython/RustPython/blob/master/DEVELOPMENT.md)
+For a general introduction to RustPython development, please visit the [RustPython development guide](https://github.com/RustPython/RustPython/blob/master/CONTRIBUTING.md#rustpython-development-guide-and-tips)