diff --git a/Monitoring-Debugging/Tracing-with-X-Ray/example/requirements.txt b/Monitoring-Debugging/Tracing-with-X-Ray/example/requirements.txt
index e44ddbb..3edbbf8 100644
--- a/Monitoring-Debugging/Tracing-with-X-Ray/example/requirements.txt
+++ b/Monitoring-Debugging/Tracing-with-X-Ray/example/requirements.txt
@@ -23,7 +23,7 @@ markupsafe==1.1.1
 placebo==0.9.0
 python-dateutil==2.6.1 ; python_version >= '2.7'
 python-slugify==1.2.4
-pyyaml==5.1
+pyyaml==5.4
 requests==2.21.0
 s3transfer==0.2.0
 six==1.12.0