diff --git a/pika-build-config/amd64.sh b/pika-build-config/amd64.sh
index 5283cbdee..2bbaf5893 100644
--- a/pika-build-config/amd64.sh
+++ b/pika-build-config/amd64.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.1-6-1"
-export PIKA_PACKAGE_NAME="r-cran-mlbench"
+export PIKA_PACKAGE_VERSION="1.9.1+dfsg-1"
+export PIKA_PACKAGE_NAME="r-cran-jsonlite"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b2"