diff --git a/src/.docker_modules/alntools/dd96682/Dockerfile b/src/.docker_modules/alntools/dd96682/Dockerfile
index 31ba00d52f7bda4736b82480adad817939acbf69..8bd4d05acee40478d3d0f9a79bc6dbd1c0789bd5 100644
--- a/src/.docker_modules/alntools/dd96682/Dockerfile
+++ b/src/.docker_modules/alntools/dd96682/Dockerfile
@@ -16,6 +16,7 @@ RUN apt-get update \
     && python setup.py install \
     && cd .. \
     && rm -R alntools \
+    && pip install six \
     && apt-get autoremove --purge -y git ca-certificates
 
 CMD ["bash"] 
\ No newline at end of file