diff --git a/languages/C/README.md b/languages/C/README.md
index 78e0923..0d3ad11 100644
--- a/languages/C/README.md
+++ b/languages/C/README.md
@@ -1,3 +1,3 @@
 # C
 
-* [The Development of the C Language-Original](https://www.bell-labs.com/usr/dmr/www/chist.pdf)
+* [The Development of the C Language-Original](https://www.nokia.com/bell-labs/about/dennis-m-ritchie/chist.pdf)