diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index adcfaaed014056e878674a1fa2b3aefad4b9457c..a26c378a4cf590243f15a45e95a5c0fa558f4033 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -10,5 +10,5 @@
 - Add summary of all code used in the session at the end of the sesssion
 - Write the WDI.Rmd training which will be for a later session
 - Write tuto to create IFB accout and launch Rstudio server
-- Write session_2/exel.Rmd to load an exel version of the mpg data
-- Write session_2/ggannimate.Rmd https://exts.ggplot2.tidyverse.org/gallery/ or another example of ggplot2 addons and cowplot (https://wilkelab.org/cowplot/articles/introduction.html)
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+- Write session_3/exel.Rmd to load an exel version of the mpg data
+- Write session_3/ggannimate.Rmd https://exts.ggplot2.tidyverse.org/gallery/ or another example of ggplot2 addons 
\ No newline at end of file