diff --git a/.travis.yml b/.travis.yml
index d80c98a..a07c4ac 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,11 @@ python:
     - "3.4"
     - "3.5"
     - "3.6"
+matrix:
+  include:
+    - python: 3.7
+      dist: xenial
+      sudo: true
 install:
     - make init
     - pip install coveralls
diff --git a/requirements.txt b/requirements.txt
index fce9076..6faff43 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,6 +11,6 @@ pytest==3.2.1
 pytest-cov==2.5.1
 mock==1.3.0
 nose==1.3.7
-PyYAML==3.11
+PyYAML==5.1
 vcrpy==1.7.4
 sphinx==1.3.5