diff --git a/.github/workflows/bookdown.yaml b/.github/workflows/bookdown.yaml
index 3dbdb62..bc5ac02 100644
--- a/.github/workflows/bookdown.yaml
+++ b/.github/workflows/bookdown.yaml
@@ -27,6 +27,7 @@ jobs:
       - uses: r-lib/actions/setup-r@v2
         with:
           use-public-rspm: true
+          r-version: 4.2.2
 
       - name: Install system-wide depencies
         run: sudo apt-get install -y libgdal-dev libudunits2-dev libmkl-rt libglpk-dev