diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 42b0940f6..3bdb6de1b 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -32,7 +32,7 @@ jobs:
           poetry run sphinx-apidoc -f -o ./source ../scaleway
           poetry run sphinx-apidoc -f -o ./source ../scaleway-async
       - name: Generate documentation
-        run: poetry run sphinx-build -b html ./ ./_build
+        run: poetry run sphinx-build -j auto -b html ./ ./_build
       - name: Deploy to GitHub Pages
         uses: peaceiris/actions-gh-pages@v4
         if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
diff --git a/docs/Makefile b/docs/Makefile
index d4bb2cbb9..dcee28255 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -3,7 +3,7 @@
 
 # You can set these variables from the command line, and also
 # from the environment for the first two.
-SPHINXOPTS    ?=
+SPHINXOPTS    ?= -j auto
 SPHINXBUILD   ?= sphinx-build
 SOURCEDIR     = .
 BUILDDIR      = _build