diff --git a/requirements.txt b/requirements.txt
index efb082d..37917bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-PyYAML==3.11
+PyYAML==5.1
diff --git a/setup.py b/setup.py
index 991d18d..dd577cb 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@ setup(
     packages=find_packages(),
     license="MIT",
     install_requires=[
-        "PyYAML==3.11",
+        "PyYAML==5.1",
     ],
     classifiers=[
         "Intended Audience :: Developers",