diff --git a/en/contribution.md b/en/contribution.md
index 94e9687..cc7d20a 100644
--- a/en/contribution.md
+++ b/en/contribution.md
@@ -2,9 +2,9 @@
 
 The source files of this document and Diplodoc Platform tools are stored in repositories:
 
-* [Documentation](https://github.com/diplodoc-platform/docs)
-* [Diplodoc](https://github.com/diplodoc-platform/diplodoc)
-* 
+* [Documentation](https://github.com/diplodoc-platform/docs).
+* [Transformer](https://github.com/diplodoc-platform/transform).
+* [Builder](https://github.com/diplodoc-platform/cli).
 
 You can submit bugs and suggestions as GitHub issues in the corresponding repository.