diff --git a/webapp/deploy_requirements.txt b/webapp/deploy_requirements.txt
index edc069a5..938bcb38 100644
--- a/webapp/deploy_requirements.txt
+++ b/webapp/deploy_requirements.txt
@@ -12,7 +12,7 @@ Pillow==7.0.0
 psutil==5.7.0
 pyparsing==2.4.6
 python-dateutil==2.8.1
-PyYAML==5.3
+PyYAML==5.4
 six==1.14.0
 tornado==6.0.4
 Werkzeug==1.0.0
diff --git a/webapp/requirements.txt b/webapp/requirements.txt
index 5fd13b4f..de8d9adb 100644
--- a/webapp/requirements.txt
+++ b/webapp/requirements.txt
@@ -12,7 +12,7 @@ Pillow==7.0.0
 psutil==5.7.0
 pyparsing==2.4.6
 python-dateutil==2.8.1
-PyYAML==5.3
+PyYAML==5.4
 six==1.14.0
 tornado==6.0.4
 Werkzeug==1.0.0