diff --git a/.github/workflows/ci_docs.yml b/.github/workflows/ci_docs.yml
index 5cf865b8bbb..b6edd354fb7 100644
--- a/.github/workflows/ci_docs.yml
+++ b/.github/workflows/ci_docs.yml
@@ -173,7 +173,15 @@ jobs:
           mv latex/pygmt.pdf pygmt-docs.pdf
           cd ../..
 
-      - name: Upload PDF as artifact for previewing on pull requests
+      - name: Upload the documentation to ReadTheDocs for PR preview
+        uses: readthedocs/upload-action@f1f5bac5fc97073927100367d8a5bb22587e1e16 # main
+        if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository && matrix.os == 'ubuntu-latest'
+        with:
+          token: ${{ secrets.READTHEDOCS_TOKEN }}
+          project-slug: pygmt-dev
+          html: doc/_build/html
+
+      - name: Upload PDF as artifact for PR preview
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         if: github.event_name == 'pull_request' && matrix.os == 'ubuntu-latest'
         with: