diff --git a/requirements.txt b/requirements.txt
index 5bba3cc6..76f925ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Jinja2==2.7.3
 LEPL==5.1.3
 MarkupSafe==0.23
 PasteDeploy==1.5.2
-PyYAML==3.11
+PyYAML==5.4
 Pygments==2.0.2
 Sphinx==1.3.1
 WebOb==1.4.1
@@ -30,7 +30,7 @@ pytest==2.6.4
 python-coveralls==2.5.0
 pytz==2016.10
 repoze.lru==0.6
-requests==2.7.0
+requests==2.20
 schematics==1.1.0
 setuptools==7.0
 sh==1.11