diff --git a/jupyter/Dockerfile b/jupyter/Dockerfile
index 6d7c155..ac5ecff 100644
--- a/jupyter/Dockerfile
+++ b/jupyter/Dockerfile
@@ -28,8 +28,12 @@ RUN chown jovyan /home/hexa
 
 USER ${NB_UID}
 
+# Who knows?
+RUN mamba install --yes arrow-cpp=7.0.1 && mamba clean --all -f -y
+
 # R packages
 RUN mamba install --yes \
+    'r-arrow=7.*' \
     'r-aws.s3=0.*' \
     'r-geojsonio=0.*' \
     'r-getpass=0.*' \