diff --git a/extras/packaging/gnu-linux/docker/Dockerfile_opensuse-leap_15.4 b/extras/packaging/gnu-linux/docker/Dockerfile_opensuse-leap_15.4
index 9ea718e371ac49b6b2c646063001db2f03ea2879..9b83123488f3d56bbabf9fac6bd0e12f1f11bf44 100644
--- a/extras/packaging/gnu-linux/docker/Dockerfile_opensuse-leap_15.4
+++ b/extras/packaging/gnu-linux/docker/Dockerfile_opensuse-leap_15.4
@@ -70,6 +70,7 @@ RUN zypper --non-interactive install -y \
         nodejs12 \
         mozilla-nss-devel \
         python-xml \
+        python-six \
         libxcb* \
         libxkb* \
         libX11-devel \