diff --git a/Dockerfile b/Dockerfile
index 7007ee4..3902461 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 #
 # STAGE 1: extra variant
 #
-FROM pandoc/extra:3.6-ubuntu AS extra
+FROM pandoc/extra:3.7-ubuntu AS extra
 
 # Set the env variables to non-interactive
 ENV DEBIAN_FRONTEND noninteractive
@@ -81,7 +81,7 @@ RUN mkdir -p ~/.ssh && \
 #
 
 # pandoc 2.10+ requires revealjs 4.x
-ARG REVEALJS_VERSION=4.1.2
+ARG REVEALJS_VERSION=5.2.1
 RUN wget https://github.com/hakimel/reveal.js/archive/${REVEALJS_VERSION}.tar.gz -O revealjs.tar.gz && \
     tar -xzvf revealjs.tar.gz && \
     cp -r reveal.js-${REVEALJS_VERSION}/dist / && \
diff --git a/requirements.txt b/requirements.txt
index bcad3b5..2d5da18 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,5 @@
 # https://github.com/daamien/pandoc-cover/releases/latest
 pandoc-cover==0.2.1
-# https://github.com/chdemko/pandoc-codeblock-include/releases/latest
-# pandoc-codeblock-include==0.1
-# https://github.com/DCsunset/pandoc-include/releases/latest
-pandoc-include==1.3.2
 # https://github.com/daamien/pandoc-jinja/releases
 pandoc-jinja==0.2.4
 # https://github.com/chdemko/pandoc-latex-admonition/releases/latest