diff --git a/scripts/_common.sh b/scripts/_common.sh
index f39b966..bb0fe95 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -9,6 +9,8 @@ pkg_dependencies="imagemagick ffmpeg libpq-dev libxml2-dev libxslt1-dev file git
 
 RUBY_VERSION="2.6.5"
 
+BUNDLER_VERSION="1.17.3"
+
 #=================================================
 # PERSONAL HELPERS
 #=================================================
diff --git a/scripts/install b/scripts/install
index 2e218c6..ab3aaa9 100644
--- a/scripts/install
+++ b/scripts/install
@@ -157,7 +157,7 @@ ynh_script_progression --message="Installing Ruby..." --weight=424
 ynh_install_ruby --ruby_version=$RUBY_VERSION
 pushd "$final_path/live"
 	gem update --system
-	gem install bundler:1.17.3 --no-document
+	gem install bundler:$BUNDLER_VERSION --no-document
 popd
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index bd79e95..724afc3 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -117,7 +117,7 @@ ynh_script_progression --message="Installing Ruby..." --weight=393
 ynh_install_ruby --ruby_version=$RUBY_VERSION
 pushd "$final_path/live"
 	gem update --system
-	gem install bundler:1.17.3 --no-document
+	gem install bundler:$BUNDLER_VERSION --no-document
 popd
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index f34010b..149c2f5 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -252,7 +252,7 @@ ynh_script_progression --message="Installing Ruby..." --weight=424
 ynh_install_ruby --ruby_version=$RUBY_VERSION
 pushd "$final_path/live"
 	gem update --system
-	gem install bundler:1.17.3 --no-document
+	gem install bundler:$BUNDLER_VERSION --no-document
 popd
 
 #=================================================