diff --git a/util/dockerfiles/gcn-gpu/Dockerfile b/util/dockerfiles/gcn-gpu/Dockerfile
index 475918f516..7787339a71 100644
--- a/util/dockerfiles/gcn-gpu/Dockerfile
+++ b/util/dockerfiles/gcn-gpu/Dockerfile
@@ -23,6 +23,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     python-dev \
     python \
     python-yaml \
+    python-six \
     wget \
     libpci3 \
     libelf1 \