diff --git a/module2/ressources/rr_org/init.el b/module2/ressources/rr_org/init.el
index e13dc3b05b983076e4cbf263f9edb71ef406a623..62d3b1601facdfd913ebf18a457fc2f070e54d4f 100644
--- a/module2/ressources/rr_org/init.el
+++ b/module2/ressources/rr_org/init.el
@@ -51,6 +51,8 @@
 ;;                              " -Dhttp.proxyPort=" proxy-port)))
 
 (package-initialize)
+(add-to-list 'package-archives
+		 '("gnu" . "https://elpa.gnu.org/packages/"))
 (add-to-list 'package-archives
 		 '("melpa-stable" . "http://stable.melpa.org/packages/"))
 (add-to-list 'package-archives
diff --git a/module2/ressources/rr_org/init.org b/module2/ressources/rr_org/init.org
index 8eb28fd120d6caad7b7f9531d554ac940e4fc086..ed908912351261b86bf1acca291e761feb851b7e 100644
--- a/module2/ressources/rr_org/init.org
+++ b/module2/ressources/rr_org/init.org
@@ -74,6 +74,8 @@ document, simply =M-x org-babel-tangle=.
 ** Use melpa-stable (preferred) and melpa in addition to the default GNU archive
 #+BEGIN_SRC emacs-lisp :tangle init.el
 (package-initialize)
+(add-to-list 'package-archives
+		 '("gnu" . "https://elpa.gnu.org/packages/"))
 (add-to-list 'package-archives
 		 '("melpa-stable" . "http://stable.melpa.org/packages/"))
 (add-to-list 'package-archives