diff --git a/requirements_dev.txt b/requirements_dev.txt
index feb844a..798aa63 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -29,7 +29,7 @@ pypandoc==1.4
 pytest==4.3.1
 pytest-asyncio==0.10.0
 pytest-timeout==1.3.3
-PyYAML==5.1
+PyYAML==5.4
 redis==3.2.1
 sanic-plugins-framework==0.8.1
 sanic==19.3.1
diff --git a/setup.py b/setup.py
old mode 100755
new mode 100644
index 4b2ddc0..408885f
--- a/setup.py
+++ b/setup.py
@@ -46,7 +46,7 @@
     "ujson==1.35",
     "dnspython==1.15.0",
     "dnspython3==1.15.0",
-    "pyYAML==5.1",
+    "pyYAML==5.4",
 ]
 
 setup(