diff --git a/docs/gsoc/ideas.md b/docs/gsoc/ideas.md
index 51d44a8f..de3eac33 100644
--- a/docs/gsoc/ideas.md
+++ b/docs/gsoc/ideas.md
@@ -35,3 +35,4 @@ We know `numpy` is a huge project.
 Our goal is to implement a most commonly used subset of `numpy` in pocketpy.
 You can mix C++ and Python code to simplify the overall workloads.
 
+https://github.com/pocketpy/pocketpy/issues/202