diff --git a/stack/base/Dockerfile b/stack/base/Dockerfile
index dc274078..2b22df8f 100644
--- a/stack/base/Dockerfile
+++ b/stack/base/Dockerfile
@@ -60,9 +60,12 @@ COPY pip.conf "${CONDA_DIR}/pip.conf"
 # Update async_generator, certipy to satisfy `pip check`
 # https://github.com/aiidalab/aiidalab-docker-stack/issues/490
 # Install aiida-core and other shared requirements.
+# We need to pin numpy to 1.x due to AWB using old bokeh version, see:
+# https://github.com/aiidalab/aiidalab-widgets-base/issues/733
 RUN mamba update -y pip async_generator certipy && \
      mamba install --yes \
-     aiida-core==${AIIDA_VERSION} \
+     aiida-core=${AIIDA_VERSION} \
+     numpy=1.* \
      mamba-bash-completion \
      traitlets=5.9.0 \
      && mamba clean --all -f -y && \