diff --git a/llamaindex/Dockerfile b/llamaindex/Dockerfile
index da4153a..b81f3bc 100644
--- a/llamaindex/Dockerfile
+++ b/llamaindex/Dockerfile
@@ -1,5 +1,5 @@
 ARG BASE_IMAGE_TAG=latest
-FROM b08x/notebook-datascience:$BASE_IMAGE_TAG
+FROM b08x/notebook-minimal:$BASE_IMAGE_TAG
 
 LABEL maintainer="Robert Pannick <rwpannick@gmail.com>"
 
diff --git a/llamaindex/Gemfile b/llamaindex/Gemfile
index dcd2167..0c0b6d2 100644
--- a/llamaindex/Gemfile
+++ b/llamaindex/Gemfile
@@ -68,11 +68,11 @@ gem 'charty', '>= 0.2.12'
 gem 'matplotlib', '>= 1.2.0'
 gem 'numpy', '>= 0.4.0'
 gem 'pandas', '>= 0.3.8'
-gem 'red_amber', '0.4.2'
-gem 'red-arrow', '11.0.0'
-gem 'red-datasets', '>= 0.1.4'
-gem 'red-gandiva', '11.0.0'
-gem 'red-parquet', '11.0.0'
+# gem 'red_amber', '0.4.2'
+# gem 'red-arrow', '11.0.0'
+# gem 'red-datasets', '>= 0.1.4'
+# gem 'red-gandiva', '11.0.0'
+# gem 'red-parquet', '11.0.0'
 gem 'unicode_plot', '>= 0.0.5'
 
 # Additional gems
@@ -85,10 +85,10 @@ gem 'nmatrix-lapacke'
 gem 'numo-linalg'
 gem 'numo-narray'
 gem 'rbplotly'
-gem 'red-arrow-numo-narray'
-gem 'red-chainer'
-gem 'red-datasets-arrow'
-gem 'red-datasets-daru'
-gem 'red-datasets-pandas'
-gem 'red-plasma'
+# gem 'red-arrow-numo-narray'
+# gem 'red-chainer'
+# gem 'red-datasets-arrow'
+# gem 'red-datasets-daru'
+# gem 'red-datasets-pandas'
+# gem 'red-plasma'
 gem 'rumale'
diff --git a/minimal/Dockerfile b/minimal/Dockerfile
index 51bd166..c189de2 100644
--- a/minimal/Dockerfile
+++ b/minimal/Dockerfile
@@ -13,6 +13,14 @@ RUN usermod -a -G sudo $NB_USER && usermod -a -G $GROUP_ID $NB_USER
 
 RUN echo "$NB_USER ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/99-$NB_USER && chmod 0440 /etc/sudoers.d/99-$NB_USER
 
+# Pre-requisites
+RUN echo 'deb http://apt.llvm.org/focal/ llvm-toolchain-focal main' >> /etc/apt/sources.list && \
+    echo 'deb http://apt.llvm.org/focal/ llvm-toolchain-focal-11 main' >> /etc/apt/sources.list && \
+    wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key|apt-key add - && \
+    apt-get update -qq && \
+    apt-get autoremove -y && \
+    rm -rf /var/lib/apt/lists/*
+
 # Pre-requisites
 RUN apt-get update && apt-get install -y -V --no-install-recommends \
       apt-transport-https gnupg lsb-release apt-utils \
diff --git a/nlp/Dockerfile b/nlp/Dockerfile
index f0b851b..5941606 100644
--- a/nlp/Dockerfile
+++ b/nlp/Dockerfile
@@ -1,5 +1,5 @@
 ARG BASE_IMAGE_TAG=latest
-FROM b08x/notebook-datascience:$BASE_IMAGE_TAG
+FROM b08x/notebook-minimal:$BASE_IMAGE_TAG
 
 LABEL maintainer="Robert Pannick <rwpannick@gmail.com>"
 
@@ -19,6 +19,7 @@ RUN apt update -qq && \
       tesseract-ocr \
       ghostscript \
       poppler-utils \
+      libgirepository1.0-dev \
       libreoffice \
       graphviz && \
     apt-get autoremove -y && \
diff --git a/nlp/Gemfile b/nlp/Gemfile
index b2e82da..ea31519 100644
--- a/nlp/Gemfile
+++ b/nlp/Gemfile
@@ -68,11 +68,11 @@ gem 'charty', '>= 0.2.12'
 gem 'matplotlib', '>= 1.2.0'
 gem 'numpy', '>= 0.4.0'
 gem 'pandas', '>= 0.3.8'
-gem 'red_amber', '0.4.2'
-gem 'red-arrow', '11.0.0'
-gem 'red-datasets', '>= 0.1.4'
-gem 'red-gandiva', '11.0.0'
-gem 'red-parquet', '11.0.0'
+# gem 'red_amber', '0.4.2'
+# gem 'red-arrow', '11.0.0'
+# gem 'red-datasets', '>= 0.1.4'
+# gem 'red-gandiva', '11.0.0'
+# gem 'red-parquet', '11.0.0'
 gem 'unicode_plot', '>= 0.0.5'
 
 # Additional gems
@@ -82,12 +82,12 @@ gem 'enumerable-statistics'
 gem 'ffi-rzmq'
 gem 'numo-linalg'
 gem 'numo-narray'
-gem 'red-arrow-numo-narray'
-gem 'red-chainer'
-gem 'red-datasets-arrow'
-gem 'red-datasets-daru'
-gem 'red-datasets-pandas'
-gem 'red-plasma'
+# gem 'red-arrow-numo-narray'
+# gem 'red-chainer'
+# gem 'red-datasets-arrow'
+# gem 'red-datasets-daru'
+# gem 'red-datasets-pandas'
+# gem 'red-plasma'
 gem 'rumale'