diff --git a/.github/workflows/check-standalone.yaml b/.github/workflows/check-standalone.yaml
index b23b95a..8847acd 100644
--- a/.github/workflows/check-standalone.yaml
+++ b/.github/workflows/check-standalone.yaml
@@ -38,7 +38,7 @@ jobs:
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: local::. rcmdcheck BH RcppParallel RcppEigen Rcpp rstan StanHeaders
+          extra-packages: local::. rcmdcheck BH RcppParallel RcppEigen Rcpp rstan StanHeaders RCurl
 
       - name: Checkout lgpr package
         run: |