diff --git a/index.md b/index.md
index 6a306bc412c4ce000569f14194ab49a62bb04775..f6d6bdee41a0dfbb5df5ab33bc021e50187649e8 100644
--- a/index.md
+++ b/index.md
@@ -87,11 +87,11 @@ Chaîne *BBB* du cours <https://bbb.hesge.ch/rooms/wkm-a1q-7d1-rjb/join>
 ### 08.11.2022: Démineur, [HTML](https://malaspinas.academy/prog_seq_c_tp/demineur/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/demineur/demineur.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/demineur/enonce)
 
 
-### 01.11.2022: Chaînes de caractères, [HTML](https://malaspinas.academy/prog_seq_c_tp/chaines_caracteres/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/chaines_caracteres/chaines_caracteres.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/chaines_caracteres/enonce)
+### 20.09.2022: Calendrier, [HTML](https://malaspinas.academy/prog_seq_c_tp/calendar/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/calendar/calendar.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/calendar/enonce) -->
 
-### 01.11.2022: Makefiles, [HTML](https://malaspinas.academy/prog_seq_c_tp/makefiles/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/makefiles/makefiles.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/makefiles/enonce)
+### 02.11.2023: Chaînes de caractères, [HTML](https://malaspinas.academy/prog_seq_c_tp/chaines_caracteres/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/chaines_caracteres/chaines_caracteres.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/chaines_caracteres/enonce)
 
-### 20.09.2022: Calendrier, [HTML](https://malaspinas.academy/prog_seq_c_tp/calendar/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/calendar/calendar.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/calendar/enonce) -->
+### 02.11.2023: Makefiles, [HTML](https://malaspinas.academy/prog_seq_c_tp/makefiles/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/makefiles/makefiles.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/makefiles/enonce)
 
 ### 19.10.2023: Fractions, [HTML](https://malaspinas.academy/prog_seq_c_tp/fractions/index.html), [PDF](https://malaspinas.academy/prog_seq_c_tp/fractions/fractions.pdf), [GIT](https://gitedu.hesge.ch/programmation_sequentielle/travaux_pratiques/c_lang/fractions/enonce)