diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 9d8001b0..423a5bb4 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -54,7 +54,6 @@ jobs:
         with:
           cache-version: 2
           extra-packages: rcmdcheck
-          use-public-rspm: true
 
       # TODO: allow warnings on oldrel (cf., https://stat.ethz.ch/pipermail/r-package-devel/2023q2/009229.html)
       - name: Check R version