diff --git a/scripts/install b/scripts/install
index ecf21af..2c59bc5 100644
--- a/scripts/install
+++ b/scripts/install
@@ -133,7 +133,7 @@ chown -R $app: $final_path
 pushd $final_path || ynh_die
  	ynh_use_nodejs
  	ynh_exec_as $app env "$ynh_node_load_PATH" bin/installDeps.sh
- 	ynh_exec_warn_less ynh_exec_as $app env "$ynh_node_load_PATH" npm install ep_spellcheck ep_delete_empty_pads ep_subscript_and_superscript ep_headings2 ep_author_hover ep_markdown ep_comments_page ep_align ep_font_color ep_embedded_hyperlinks2
+ 	ynh_exec_warn_less ynh_exec_as $app env "$ynh_node_load_PATH" npm install ep_spellcheck ep_countable ep_delete_empty_pads ep_subscript_and_superscript ep_headings2 ep_author_hover ep_markdown ep_comments_page ep_align ep_font_color ep_embedded_hyperlinks2
 popd || ynh_die
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index c097cca..179b3ab 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -138,7 +138,7 @@ chown -R $app: $final_path
 pushd "$final_path" || ynh_die
  	ynh_use_nodejs
  	ynh_exec_as $app env $ynh_node_load_PATH bin/installDeps.sh
- 	 	ynh_exec_warn_less ynh_exec_as $app env "$ynh_node_load_PATH" npm install ep_spellcheck ep_delete_empty_pads ep_subscript_and_superscript ep_headings2 ep_author_hover ep_markdown ep_comments_page ep_align ep_font_color ep_embedded_hyperlinks2
+ 	 	ynh_exec_warn_less ynh_exec_as $app env "$ynh_node_load_PATH" npm install ep_spellcheck ep_countable ep_delete_empty_pads ep_subscript_and_superscript ep_headings2 ep_author_hover ep_markdown ep_comments_page ep_align ep_font_color ep_embedded_hyperlinks2
 popd || ynh_die 
 
 #=================================================