diff --git a/mkdocs.yml b/mkdocs.yml
index 12fb2a4..72273da 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -38,9 +38,9 @@ nav:
            - Share your progress: worksheets/worksheet_4.md
        - Group repositories:
            - Group 1 -- Climate extremes and natural disasters: https://cu-esiil.github.io/Innovation-Summit-2024_1_Climate-extremes-and-natural-disasters/
-           - Group 2 -- Ecosystem cycles under climate change: https://cu-esiil.github.io/Innovation-Summit-2024__2_Ecosystem-cycles-under-climate-change/
+           - Group 2 -- Species Interactions Under Climate Changes (molecular tools): https://cu-esiil.github.io/Innovation-Summit-2024__2_Ecosystem-cycles-under-climate-change/
            - Group 3 -- Biodiversity resilience to climate change: https://cu-esiil.github.io/Innovation-Summit-2024__3_Biodiversity-resilience-to-climate-change/
-           - Group 4 -- Species interactions under climate change: https://cu-esiil.github.io/Innovation-Summit-2024__4_Species-interactions-under-climate-change/
+           - Group 4 -- Species interactions under climate change: https://cu-esiil.github.io/Innovation-Summit-2024-4b/
            - Group 5 -- Invasive species spread: https://cu-esiil.github.io/Innovation-Summit-2024__5_Invasive-species-spread/
            - Group 6 -- Land use and management under climate change: https://cu-esiil.github.io/Innovation-Summit-2024__6_Land-use-and-management-under-climate-change/
            - Group 7 -- Predicting future water resources: https://cu-esiil.github.io/Innovation-Summit-2024__7_Predicting-future-water-resources/