diff --git a/requirements/py2_cdeep3m_reqs.txt b/requirements/py2_cdeep3m_reqs.txt
index febced2..d0d880d 100644
--- a/requirements/py2_cdeep3m_reqs.txt
+++ b/requirements/py2_cdeep3m_reqs.txt
@@ -29,7 +29,7 @@ python-dateutil==2.8.0
 python-gflags==3.1.2
 pytz==2019.2
 PyWavelets==1.0.3
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 scandir==1.10.0
 scikit-image==0.14.3
diff --git a/requirements/py3_cdeep3m_reqs.txt b/requirements/py3_cdeep3m_reqs.txt
index f54b8d4..80bf839 100644
--- a/requirements/py3_cdeep3m_reqs.txt
+++ b/requirements/py3_cdeep3m_reqs.txt
@@ -18,7 +18,7 @@ protobuf==3.9.1
 ptyprocess==0.6.0
 Pygments==2.4.2
 pyparsing==2.4.2
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 scikit-image==0.15.0
 scipy==1.2.1