diff --git a/README.md b/README.md
index e0c2e81..5198f4c 100644
--- a/README.md
+++ b/README.md
@@ -656,7 +656,7 @@ Write code on a whiteboard or paper, not a computer. Test with some sample input
 
 - ### Trees - Notes & Background
     - [ ] [Series: Core Trees (video)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/ovovP/core-trees)
-    - [ ] [Series: Trees (video)](https://www.coursera.org/learn/data-structures/lecture/95qda/trees)
+    - [ ] [Series: Trees (video)](https://www.coursera.org/lecture/data-structures/trees-95qda)
     - basic tree construction
     - traversal
     - manipulation algorithms