diff --git a/requirements.txt b/requirements.txt
index 7b5ec46..2158d22 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ Adafruit-BBIO==0.0.30
 Flask==0.10.1
 Jinja2==2.8
 MarkupSafe==0.23
-PyYAML==3.11
+PyYAML==5.4
 Werkzeug==0.10.4
 argparse==1.2.1
 itsdangerous==0.24
diff --git a/setup.py b/setup.py
index c2508e1..588fd97 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
     "Flask==0.10.1",
     "Jinja2==2.8",
     "MarkupSafe==0.23",
-    "PyYAML==3.11",
+    "PyYAML==5.4",
     "Werkzeug==0.10.4",
     "argparse==1.2.1",
     "itsdangerous==0.24",