diff --git a/requirements.txt b/requirements.txt
index e69c82e..28fbb63 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 python-dateutil==2.7.5
 pytoml==0.1.20
-PyYAML==3.13
+PyYAML==5.1
diff --git a/setup.py b/setup.py
index 3ce2e8a..cb7598c 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@
     install_requires=[
         'python-dateutil >= 2.5.0',
         'pytoml >= 0.1.11',
-        'PyYAML >= 3.12',
+        'PyYAML >= 5.1',
     ],
     entry_points={
         'console_scripts': [