diff --git a/Dockerfile b/Dockerfile
index 23237f08791c2491c0563a1f9c3e751f5aace50c..536ece9bd0813107493352ccd915124da7c2f82c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,6 +15,16 @@ FROM  ghcr.io/truatpasteurdotfr/alphafold-jupyter-pymol:main
 # Install conda packages.
 ENV PATH="/opt/conda/bin:$PATH"
 
-RUN	git clone https://gitlab.pasteur.fr/tru/af2complex.git && \
+RUN	cd /app && \
+	git clone https://gitlab.pasteur.fr/tru/af2complex.git && \
 	cd af2complex && \
-	pip3 install -r requirements.txt --no-cache-dir 
+	pip3 install networkx==2.5.0 --no-cache-dir 
+#	pip3 install -r requirements.txt --no-cache-dir 
+#  yields:
+# ...
+#Installing collected packages: numpy, networkx, tensorflow-cpu
+#  Attempting uninstall: numpy
+#    Found existing installation: numpy 1.23.5
+#    Uninstalling numpy-1.23.5:
+#      Successfully uninstalled numpy-1.23.5
+#Successfully installed networkx-2.5 numpy-1.21.6 tensorflow-cpu-2.9.0