diff --git a/Dockerfile b/Dockerfile
index 28d787dca6a78b3f1db5da3f62f4306ec18a37c5..84571fa75b003371f3659e2e3dd497821c8a1690 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -34,7 +34,7 @@ RUN useradd -m -s /bin/bash -N -u $NB_UID $NB_USER && \
     chown $NB_USER $CONDA_DIR -R && \
     mkdir -p /src && \
     chown $NB_USER /src && \
-    adduser $NB_USER sudo && chpasswd $NB_USER:ar-noc
+    chpasswd $NB_USER:ar-noc
 
 USER $NB_USER