diff --git a/requirements.txt b/requirements.txt
index 09f8f8c..80c49ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ numpy==1.16.1
 pandas==0.25.0
 pyodbc==4.0.23
 pytorch-pretrained-bert==0.6.2
-PyYAML==5.1
+PyYAML==5.4
 scikit-learn==0.21.2
 seaborn==0.8.1
 torch==1.3.0
diff --git a/requirements_py2_mmvenv.txt b/requirements_py2_mmvenv.txt
index e27f567..c762218 100644
--- a/requirements_py2_mmvenv.txt
+++ b/requirements_py2_mmvenv.txt
@@ -15,7 +15,7 @@ pandas==0.23.4
 protobuf==3.12.0
 python-dateutil==2.8.1
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 scikit-learn==0.18.2
 scipy==1.2.3
 six==1.14.0