diff --git a/iac/aws/lambda/layer/requirements.txt b/iac/aws/lambda/layer/requirements.txt
index ac793b9..997c487 100644
--- a/iac/aws/lambda/layer/requirements.txt
+++ b/iac/aws/lambda/layer/requirements.txt
@@ -7,7 +7,7 @@ idna==2.8
 jmespath==0.9.4
 pyasn1==0.4.7
 python-dateutil==2.8.0
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 rsa==3.4.2
 six==1.12.0