diff --git a/Dockerfile b/Dockerfile
index 1c669f1..595562c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,7 +22,7 @@ USER jovyan
 
 # RUN conda install -y scikit-learn
 
-RUN pip install --no-cache-dir networkx scipy wave soundfile pytorch_lightning
+RUN pip install --no-cache-dir networkx numpy scipy wave soundfile pytorch_lightning
 
 # Override command to disable running jupyter notebook at launch
 # CMD ["/bin/bash"]