diff --git a/Dockerfile b/Dockerfile
index 285fab5..edd22f9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,8 @@ FROM node:12.22.12-stretch-slim
 
 RUN apt-get update && apt-get -y upgrade
 
-RUN apt-get install -y git
+RUN apt-get install -y git curl
+RUN curl -fsSL https://get.pnpm.io/install.sh | sh -
 
 RUN mkdir /opt/documentation && chown node: /opt/documentation
 
@@ -10,6 +11,6 @@ USER node
 
 WORKDIR /opt/documentation
 
-RUN npm install
+RUN pnpm install
 
-CMD [ "npm", "run", "serve"]
+CMD [ "pnpm", "run", "serve"]
diff --git a/README.md b/README.md
index 8c6037e..1206f6c 100644
--- a/README.md
+++ b/README.md
@@ -17,14 +17,14 @@ the easiest way to do so is to fork the documentation repository and develop loc
 
 First, run
 
-`npm install`
+`pnpm install`
 
 to install all dependencies (they will be installed only for this project, not globally).
 You only have to do this once.
 
 Then run
 
-`npm run serve`
+`pnpm run serve`
 
 to start a development web server that by default is listening at `http://localhost:8080`.
 
@@ -72,17 +72,17 @@ The parameters are:
 Like for local development, before building and deploying you first have to install
 the dependencies (once):
 
-`npm install`
+`pnpm install`
 
 To build the entire website to the `_site` directory run
 
-`npm run build`
+`pnpm run build`
 
 Instead, to directly publish the page to Codeberg pages, you can also run
 
-`npm run deploy`
+`pnpm run deploy`
 
-which includes a call to `npm run build`.
+which includes a call to `pnpm run build`.
 
 ### Technical Information
 
diff --git a/deploy.sh b/deploy.sh
index 16c2355..a8354ec 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -1,5 +1,5 @@
 #!/bin/bash -ex
-npm run build
+pnpm run build
 
 DEPLOYMENT_REPO=${1:-git@codeberg.org:Codeberg-Infrastructure/static-deployments}
 DEPLOYMENT_BRANCH=${2:-docs}