diff --git a/requirements.txt b/requirements.txt
index c0a73d3..f056552 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,16 +1,17 @@
 backports-abc==0.5
-click==6.7
+Click==7.0
 futures==3.2.0
 Jinja2==2.10
-livereload==2.5.2
-Markdown==3.0
+livereload==2.6.0
+Markdown==3.0.1
 markdown-include==0.5.1
-MarkupSafe==1.0
+MarkupSafe==1.1.0
 mkdocs==1.0.4
-mkdocs-material==3.0.4
-Pygments==2.2.0
+mkdocs-bootswatch==0.5.0
+mkdocs-material==3.2.0
+Pygments==2.3.1
 pymdown-extensions==5.0
-PyYAML>=4.2b1
+PyYAML==4.2b4
 singledispatch==3.4.0.3
-six==1.11.0
+six==1.12.0
 tornado==5.1.1