diff --git a/session_1/session_1.Rmd b/session_1/session_1.Rmd
index 0ca151f0d2a158231ac925d919b6cd8675fe138e..43deda3d44be6035c90ea4c72e4201cc7fcf34bc 100644
--- a/session_1/session_1.Rmd
+++ b/session_1/session_1.Rmd
@@ -821,4 +821,4 @@ unloadNamespace("ggplot2")
 sessionInfo()
 ```
 
-## See you in [Session 2 : "Introduction to Tidyverse"](https://can.gitbiopages.ens-lyon.fr/R_basis/session_2/)
+## See you in [Session 2 : "Introduction to Tidyverse"](https://can.gitbiopages.ens-lyon.fr/R_basis/session_2.html)