diff --git a/SENET/requirement.txt b/SENET/requirement.txt
index 21554873..45dbbbb5 100644
--- a/SENET/requirement.txt
+++ b/SENET/requirement.txt
@@ -52,7 +52,7 @@ pyparsing==2.2.0
 pyreadline==2.1
 python-dateutil==2.6.1
 pytz==2017.3
-PyYAML==3.12
+PyYAML==5.4
 regex==2017.4.5
 requests==2.18.4
 rsa==3.4.2
diff --git a/SENET/src/requirement.txt b/SENET/src/requirement.txt
index 21554873..45dbbbb5 100644
--- a/SENET/src/requirement.txt
+++ b/SENET/src/requirement.txt
@@ -52,7 +52,7 @@ pyparsing==2.2.0
 pyreadline==2.1
 python-dateutil==2.6.1
 pytz==2017.3
-PyYAML==3.12
+PyYAML==5.4
 regex==2017.4.5
 requests==2.18.4
 rsa==3.4.2