diff --git a/base-notebook/Dockerfile b/base-notebook/Dockerfile
index e27a58e7..7b884e48 100644
--- a/base-notebook/Dockerfile
+++ b/base-notebook/Dockerfile
@@ -121,18 +121,6 @@ RUN set -x && \
     fix-permissions "${CONDA_DIR}" && \
     fix-permissions "/home/${NB_USER}"
 
-# Using fixed version of mamba in arm, because the latest one has problems with arm under qemu
-# See: https://github.com/jupyter/docker-stacks/issues/1539
-RUN set -x && \
-    arch=$(uname -m) && \
-    if [ "${arch}" == "aarch64" ]; then \
-        mamba install --quiet --yes \
-            'mamba<0.18' && \
-            mamba clean --all -f -y && \
-            fix-permissions "${CONDA_DIR}" && \
-            fix-permissions "/home/${NB_USER}"; \
-    fi;
-
 # Install Jupyter Notebook, Lab, and Hub
 # Generate a notebook server config
 # Cleanup temporary files