diff --git a/.github/workflows/bookdown-test.yaml b/.github/workflows/bookdown-test.yaml
index b691d899..3a7fd6cb 100644
--- a/.github/workflows/bookdown-test.yaml
+++ b/.github/workflows/bookdown-test.yaml
@@ -31,6 +31,7 @@ jobs:
       - name: Install and activate renv
         run: |
           install.packages("renv")
+          install.packages("yaml")
           renv::activate()
         shell: Rscript {0}
       - name: Get R and OS version
diff --git a/.github/workflows/prod.yaml b/.github/workflows/prod.yaml
index ed45002b..ee77f276 100644
--- a/.github/workflows/prod.yaml
+++ b/.github/workflows/prod.yaml
@@ -70,6 +70,7 @@ jobs:
       - name: Install and activate renv
         run: |
           install.packages("renv")
+          install.packages("yaml")
           renv::activate()
         shell: Rscript {0}
       - name: Get R and OS version