diff --git a/README.md b/README.md
index fc22ab5..09b5897 100644
--- a/README.md
+++ b/README.md
@@ -17,8 +17,7 @@ los siguientes programas instalados:
 * [Markdown](https://pypi.python.org/pypi/Markdown/). Markdown
   es el lenguaje de marcado ligero en el que están escritos los
   artículos y páginas.
-* [Jinja2](https://github.com/sobolevn/jinja2-git). Este complemento se
-  utiliza para representar hash de confirmación en plantillas jinja2.
+* [Jinja2](https://palletsprojects.com/p/jinja/). Un motor de plantillas muy rápido y expresivo.
 * [Babel](https://pypi.org/project/Babel/). Para la traducción del tema
   de la página.
 * [BeautifulSoup4](https://pypi.python.org/pypi/beautifulsoup4/).
diff --git a/content/articles/citizenfour.md b/content/articles/citizenfour.md
index da8f9f3..dd3db7c 100644
--- a/content/articles/citizenfour.md
+++ b/content/articles/citizenfour.md
@@ -13,6 +13,7 @@ Title: Citizenfour
 <figure>
   <video id="player-ply" playsinline controls poster='{static}/wp-content/uploads/article/images/2018/09/video-poster-snowden.jpg'>
     <source src="https://archive.org/download/libreweb/citizenfour-spanish.webm" type="video/webm"/>
+      <p><em>Your browser does not support the video tag, please download the video instead.</em></p>
   </video>
   <figcaption>
     <h1>Citizenfour</h1>
diff --git a/pelicanconf.py b/pelicanconf.py
index c12c949..b2c7c17 100644
--- a/pelicanconf.py
+++ b/pelicanconf.py
@@ -4,7 +4,6 @@ from __future__ import unicode_literals
 
 from pelican import __version__ as PELICAN_VERSION
 
-from jinja2 import Environment
 
 # Basic settings (http://docs.getpelican.com/en/stable/settings.html#basic-settings)
 DEFAULT_CATEGORY = 'Sin categoría'