diff --git a/requirements.txt b/requirements.txt
index c2886a7fe..2d0184100 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,20 +1,20 @@
 alabaster==0.7.11
-Babel==2.6.0
+Babel==2.9.1
 certifi==2018.4.16
 chardet==3.0.4
 docutils==0.14
 idna==2.7
 imagesize==1.0.0
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 packaging==17.1
-Pygments==2.2.0
+Pygments==2.7.4
 pyparsing==2.2.0
 pytz==2018.5
-requests==2.19.1
+requests==2.20
 six==1.11.0
 snowballstemmer==1.2.1
-Sphinx==1.7.6
+Sphinx==3.0.4
 sphinx-sitemap==0.3.1
 sphinxcontrib-websupport==1.1.0
-urllib3==1.23
+urllib3==1.26.5