diff --git a/scripts/install b/scripts/install
index 02168d0..43b446e 100644
--- a/scripts/install
+++ b/scripts/install
@@ -113,10 +113,14 @@ sudo yunohost app setting $app mysqlpwd -v $db_pwd
 sudo mkdir "$final_path"
 sudo yunohost app setting $app final_path -v $final_path
 
+# Télécharge la source
+wget -nv --show-progress -i ../sources/source_url -O leed.tar.gz
+# Vérifie la somme de contrôle de la source téléchargée.
+md5sum -c ../sources/source_md5 --status || (echo "Corrupt source" && false)
 # Décompresse la source
-tar -x -f ../sources/leed.tar.gz
+tar -x -f leed.tar.gz
 # Copie les fichiers sources
-sudo cp -a leed/. "$final_path"
+sudo cp -a $(cat ../sources/source_dir)/. "$final_path"
 # Copie les fichiers additionnels ou modifiés.
 # sudo cp -a ../sources/ajouts/. "$final_path"
 # Et copie le fichier de config nginx
diff --git a/scripts/upgrade b/scripts/upgrade
index 1905f9b..77d828d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -13,10 +13,14 @@ admin=$(sudo yunohost app setting $app admin)
 is_public=$(sudo yunohost app setting $app is_public)
 
 
+# Télécharge la source
+wget -nv --show-progress -i ../sources/source_url -O leed.tar.gz
+# Vérifie la somme de contrôle de la source téléchargée.
+md5sum -c ../sources/source_md5 --status || (echo "Corrupt source" && false)
 # Décompresse la source
-tar -x -f ../sources/leed.tar.gz
+tar -x -f leed.tar.gz
 # Copie les fichiers sources
-sudo cp -a leed/. "$final_path"
+sudo cp -a $(cat ../sources/source_dir)/. "$final_path"
 # Copie les fichiers additionnels ou modifiés.
 # sudo cp -a ../sources/ajouts/. "$final_path"
 # Et copie le fichier de config nginx
diff --git a/sources/leed.tar.gz b/sources/leed.tar.gz
deleted file mode 100644
index cbe3490..0000000
Binary files a/sources/leed.tar.gz and /dev/null differ
diff --git a/sources/source_dir b/sources/source_dir
new file mode 100644
index 0000000..b4085d3
--- /dev/null
+++ b/sources/source_dir
@@ -0,0 +1 @@
+Leed-1.7
\ No newline at end of file
diff --git a/sources/source_md5 b/sources/source_md5
new file mode 100644
index 0000000..8fd724b
--- /dev/null
+++ b/sources/source_md5
@@ -0,0 +1 @@
+f54a18cef71704be85e7b963cff19357  leed.tar.gz
\ No newline at end of file
diff --git a/sources/source_url b/sources/source_url
new file mode 100644
index 0000000..a8cbbff
--- /dev/null
+++ b/sources/source_url
@@ -0,0 +1 @@
+https://github.com/ldleman/Leed/archive/v1.7.tar.gz
\ No newline at end of file