diff --git a/requirements.txt b/requirements.txt
index 2b46ad8..caa194d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,6 @@ Flask-SQLAlchemy
 Jinja2
 Markdown
 MarkupSafe
-PyContracts
 PyYAML
 Pygments
 Sphinx