diff --git a/pika-build-config/v3.sh b/pika-build-config/v3.sh
index 7c16e2a18..ee652fffe 100644
--- a/pika-build-config/v3.sh
+++ b/pika-build-config/v3.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.7.2-1"
-export PIKA_PACKAGE_NAME="r-cran-argparser"
+export PIKA_PACKAGE_VERSION="0.5.4-1"
+export PIKA_PACKAGE_NAME="r-cran-splines2"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b1"