diff --git a/check_process b/check_process
index b4eef2b..66a0890 100644
--- a/check_process
+++ b/check_process
@@ -12,7 +12,6 @@
 		setup_private=0
 		setup_public=1
 		upgrade=1
-		upgrade=1	from_commit=2987ccf8b3aa393dbef79b874dfe5839a0ee10da
 		backup_restore=1
 		multi_instance=1
 		# This test is no longer necessary since the version 2.7 (PR: https://github.com/YunoHost/yunohost/pull/304), you can still do it if your app could be installed with this version.
diff --git a/manifest.json b/manifest.json
index bd1fc77..8991309 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
 		"en": "Mastodon is a free, open-source social network.",
 		"fr": "Mastodon est un réseau social gratuit et open source."
 	},
-	"version": "3.0.1~ynh1",
+	"version": "3.0.1~ynh2",
 	"url": "https://github.com/tootsuite/mastodon",
 	"license": "AGPL-3.0-or-later",
 	"maintainer": [
diff --git a/scripts/install b/scripts/install
index 2519364..8c903b5 100644
--- a/scripts/install
+++ b/scripts/install
@@ -149,7 +149,7 @@ ynh_script_progression --message="Installing Ruby..." --weight=424
 
 ynh_install_ruby --ruby_version=2.6.5
 /opt/rbenv/versions/2.6.5/bin/gem update --system
-#/opt/rbenv/versions/2.6.5/bin/gem install bundler --no-document
+/opt/rbenv/versions/2.6.5/bin/gem install bundler:1.17.3 --no-document
 
 #=================================================
 # MODIFY A CONFIG FILE
diff --git a/scripts/restore b/scripts/restore
index 5982c94..de19461 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -114,6 +114,7 @@ ynh_script_progression --message="Installing Ruby..." --weight=393
 
 ynh_install_ruby --ruby_version=2.6.5
 /opt/rbenv/versions/2.6.5/bin/gem update --system
+/opt/rbenv/versions/2.6.5/bin/gem install bundler:1.17.3 --no-document
 
 #=================================================
 # RESTORE THE POSTGRESQL DATABASE
diff --git a/scripts/upgrade b/scripts/upgrade
index edff694..9c7eaf7 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -237,7 +237,7 @@ ynh_script_progression --message="Installing Ruby..." --weight=424
 
 ynh_install_ruby --ruby_version=2.6.5
 /opt/rbenv/versions/2.6.5/bin/gem update --system
-#/opt/rbenv/versions/2.6.5/bin/gem install bundler
+/opt/rbenv/versions/2.6.5/bin/gem install bundler:1.17.3 --no-document
 
 #=================================================
 # MODIFY A CONFIG FILE