diff --git a/requirements.txt b/requirements.txt
index 318ab53..0898edc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ defusedxml==0.5.0
 pytest==3.3.1
 pytest-cov==2.5.1
 pytest-mock==1.6.3
-PyYAML==3.12
+PyYAML==5.4
 requests==2.21.0
 requests-toolbelt==0.8.0
 urllib3==1.24.1
diff --git a/setup.py b/setup.py
index c4c8349..f4fe3ac 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
         'pytest==3.3.1',
         'pytest-cov==2.5.1',
         'pytest-mock==1.6.3',
-        'PyYAML==3.12',
+        'PyYAML==5.4',
         'requests==2.21.0',
         'requests-toolbelt==0.8.0',
         'urllib3==1.24.1'