diff --git a/requirements.txt b/requirements.txt
index 35b7a8e..72d2718 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ vertx-eventbus-client==1.0.0
 apache-skywalking==1.0.1
 nopdb==0.2.0
 pyhumps==3.8.0
-PyYAML==6.0
+PyYAML==6.0.2
diff --git a/setup.py b/setup.py
index 56fc8fc..b48bd06 100644
--- a/setup.py
+++ b/setup.py
@@ -13,4 +13,4 @@
                         'apache-skywalking==1.0.1',
                         'nopdb==0.2.0',
                         'pyhumps==3.8.0',
-                        'PyYAML==6.0'])
+                        'PyYAML==6.0.2'])