diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index ee253d4f..c008f98f 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -18,8 +18,7 @@ jobs:
         run: |
           sudo sh -c "echo ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true | debconf-set-selections"
           sudo apt-get update && sudo apt-get install -y calibre msttcorefonts
-          npm install gitbook-cli -g
-          gitbook fetch 3.2.3 && npm i npm@3.10.10 --prefix=~/.gitbook/versions/3.2.3/ # fixing https://travis-ci.org/github/CopterExpress/clover/jobs/766541125#L932
+          builder/assets/install_gitbook.sh
           npm install markdownlint-cli -g
           npm install svgexport -g
           gitbook -V
diff --git a/builder/assets/install_gitbook.sh b/builder/assets/install_gitbook.sh
new file mode 100755
index 00000000..093af6a4
--- /dev/null
+++ b/builder/assets/install_gitbook.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+# GitBook CLI is deprecated, its installation is broken.
+# This script fixes it until we stop using GitBook.
+
+export NPM_CONFIG_UNSAFE_PERM=1
+
+npm install gitbook-cli -g
+gitbook fetch 3.2.3 && npm i npm@3.10.10 --prefix=~/.gitbook/versions/3.2.3/ # fixing https://travis-ci.org/github/CopterExpress/clover/jobs/766541125#L932
diff --git a/builder/image-ros.sh b/builder/image-ros.sh
index 614e269d..9579f8ea 100755
--- a/builder/image-ros.sh
+++ b/builder/image-ros.sh
@@ -122,9 +122,8 @@ rm -rf build  # remove build artifacts
 
 echo_stamp "Build Clover documentation"
 cd /home/pi/catkin_ws/src/clover
-NPM_CONFIG_UNSAFE_PERM=true npm install gitbook-cli -g
-NPM_CONFIG_UNSAFE_PERM=true gitbook fetch 3.2.3 && npm i npm@3.10.10 --prefix=~/.gitbook/versions/3.2.3/ # fixing https://travis-ci.org/github/CopterExpress/clover/jobs/766541125#L932
-NPM_CONFIG_UNSAFE_PERM=true gitbook install
+builder/assets/install_gitbook.sh
+gitbook install
 gitbook build
 touch node_modules/CATKIN_IGNORE docs/CATKIN_IGNORE _book/CATKIN_IGNORE clover/www/CATKIN_IGNORE apps/CATKIN_IGNORE # ignore documentation files by catkin