diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
index e2e04e76..a01c0125 100755
--- a/contrib/jenkins.sh
+++ b/contrib/jenkins.sh
@@ -18,7 +18,7 @@ fi
 virtualenv -p python3 venv --system-site-packages
 . venv/bin/activate
 pip install pytlv
-pip install pyyaml
+pip install 'pyyaml>=5.1'
 pip install cmd2==1.5
 pip install jsonpath-ng
 pip install construct
diff --git a/requirements.txt b/requirements.txt
index 7308cf8e..0046a504 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,4 @@ jsonpath-ng
 construct
 bidict
 gsm0338
-pyyaml
+pyyaml>=5.1