diff --git a/pika-build-config/amd64.sh b/pika-build-config/amd64.sh
index eec87a66a..782aa859b 100644
--- a/pika-build-config/amd64.sh
+++ b/pika-build-config/amd64.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="14.4.0-1-1"
-export PIKA_PACKAGE_NAME="r-cran-rcpparmadillo"
+export PIKA_PACKAGE_VERSION="2.2.159+improved-3"
+export PIKA_PACKAGE_NAME="jtdx"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b2"