diff --git a/pika-build-config/amd64.sh b/pika-build-config/amd64.sh
index 63783e006..af688e13c 100644
--- a/pika-build-config/amd64.sh
+++ b/pika-build-config/amd64.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.0.4-2"
-export PIKA_PACKAGE_NAME="r-cran-estimatr"
+export PIKA_PACKAGE_VERSION="1.2.6-2"
+export PIKA_PACKAGE_NAME="r-cran-fastcluster"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b2"