diff --git a/slides/Dockerfile b/slides/Dockerfile
index e622212..933a95c 100644
--- a/slides/Dockerfile
+++ b/slides/Dockerfile
@@ -4,13 +4,7 @@ ENV NPM_CONFIG_CACHE=/tmp/.npm
 
 WORKDIR /app
 
-RUN git clone https://github.com/hakimel/reveal.js.git reveal \
- && git clone https://github.com/puzzle/pitc-revealjs-theme.git puzzle-theme \
- && mv puzzle-theme/css/theme/puzzle.css reveal/css/theme/ \
- && mv puzzle-theme/css/theme/source/puzzle.scss reveal/css/theme/source/ \
- && mv puzzle-theme/css/theme/source/puzzle-imgs reveal/css/theme/source/ \
- && rm -rf puzzle-theme \
- && rm -rf reveal/.git/
+RUN git clone https://github.com/hakimel/reveal.js.git reveal
 
 WORKDIR reveal
 
@@ -18,7 +12,7 @@ COPY slides/ansible-techlab ./ansible-techlab
 COPY slides/index.html.patch .
 
 RUN patch --forward --strip=1 index.html --input=index.html.patch \
- && npm install && npm run build -- css-themes
+  && npm install
 
 RUN chgrp -R 0 ${NPM_CONFIG_CACHE} \
  && chmod -R g=u ${NPM_CONFIG_CACHE}
diff --git a/slides/index.html.patch b/slides/index.html.patch
index db442f1..b5e2f92 100644
--- a/slides/index.html.patch
+++ b/slides/index.html.patch
@@ -1,11 +1,11 @@
 --- index_orig.html	2021-10-27 21:22:24.221941946 +0200
 +++ index.html	2021-10-27 21:07:05.583077961 +0200
 @@ -8,17 +8,20 @@
- 
+
  		<link rel="stylesheet" href="dist/reset.css">
  		<link rel="stylesheet" href="dist/reveal.css">
 -		<link rel="stylesheet" href="dist/theme/black.css">
-+		<link rel="stylesheet" href="dist/theme/puzzle.css" id="theme">
++		<link rel="stylesheet" href="https://puzzle.github.io/pitc-revealjs-theme/2.2.0/puzzle.css" id="theme">
  
  		<!-- Theme used for syntax highlighted code -->
 -		<link rel="stylesheet" href="plugin/highlight/monokai.css">