diff --git a/activity/requirements.txt b/activity/requirements.txt
index bda0ec0..4195c5f 100644
--- a/activity/requirements.txt
+++ b/activity/requirements.txt
@@ -1,6 +1,6 @@
 aiomysql==0.0.20
 opentracing==2.2.0
 peewee==3.10.0
-PyYAML==5.1.2
+PyYAML==5.4
 sanic==19.6.3
 sanic-openapi==0.6.0
diff --git a/order/requirements.txt b/order/requirements.txt
index bda0ec0..4195c5f 100644
--- a/order/requirements.txt
+++ b/order/requirements.txt
@@ -1,6 +1,6 @@
 aiomysql==0.0.20
 opentracing==2.2.0
 peewee==3.10.0
-PyYAML==5.1.2
+PyYAML==5.4
 sanic==19.6.3
 sanic-openapi==0.6.0
diff --git a/product/requirements.txt b/product/requirements.txt
index bda0ec0..4195c5f 100644
--- a/product/requirements.txt
+++ b/product/requirements.txt
@@ -1,6 +1,6 @@
 aiomysql==0.0.20
 opentracing==2.2.0
 peewee==3.10.0
-PyYAML==5.1.2
+PyYAML==5.4
 sanic==19.6.3
 sanic-openapi==0.6.0
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 9d855f6..4dc0e68 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -4,7 +4,7 @@ sanic_opentracing
 aiomysql==0.0.20
 opentracing==2.2.0
 peewee==3.10.0
-PyYAML==5.1.2
+PyYAML==5.4
 sanic==19.6.3
 sanic-openapi==0.6.0
 aiohttp==3.6.2
diff --git a/requirements.txt b/requirements.txt
index 1c2d0d8..ad724fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ sanic_opentracing
 aiomysql==0.0.20
 opentracing==2.2.0
 peewee==3.10.0
-PyYAML==5.1.2
+PyYAML==5.4
 sanic==19.6.3
 sanic-openapi==0.6.0
 aiohttp==3.6.2