diff --git a/pyladies_generator.py b/pyladies_generator.py
index 1231cded..922e07f9 100644
--- a/pyladies_generator.py
+++ b/pyladies_generator.py
@@ -31,7 +31,7 @@ def scrapping_pyladies():
     com os dados das sedes da Pyladies.
     """
     html = urlopen(PYLADIES_YAML).read()
-    return yaml.load(html)
+    return yaml.safe_load(html)
 
 
 def get_filename(directory, locale):
diff --git a/requirements.txt b/requirements.txt
index 8e9ae6d0..a331bf58 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,11 +6,11 @@ ecdsa
 feedgenerator
 jinja2
 lxml
-markdown==2.6.11
+markdown==3.3.6
 markupsafe
 mdx-video
 paramiko
-pelican==3.6
+pelican==4.7.1
 pelican-alias==1.1
 pillow
 pycrypto