diff --git a/scripts/install b/scripts/install
index a3c72b8..378b444 100755
--- a/scripts/install
+++ b/scripts/install
@@ -104,7 +104,7 @@ ynh_script_progression --message="Installing Lychee with Composer..." --weight=1
 # Install composer
 ynh_install_composer --phpversion="${YNH_PHP_VERSION}" --workdir="$final_path" --install_args="--prefer-source --no-dev"
 
-ynh_exec_warn_less ynh_composer_exec --phpversion="${YNH_PHP_VERSION}" --workdir="$final_path" --commands="update"
+ynh_exec_warn_less ynh_composer_exec --phpversion="${YNH_PHP_VERSION}" --workdir="$final_path" --commands="update --lock"
 
 #=================================================
 # BUILDING