diff --git a/build_container/build_container_ubuntu.sh b/build_container/build_container_ubuntu.sh
index 1dcc548b..7ca85052 100755
--- a/build_container/build_container_ubuntu.sh
+++ b/build_container/build_container_ubuntu.sh
@@ -73,6 +73,7 @@ PACKAGES=(
     python3
     python3-pip
     python3-setuptools
+    python3-yaml
     python3.8
     python3.8-dev
     rpm