diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index ef183de72..7edf1c800 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="24.05.4-1"
-export PIKA_PACKAGE_NAME="slurm-wlm"
+export PIKA_PACKAGE_VERSION="0.43.0rc0-1"
+export PIKA_PACKAGE_NAME="python-mp-api"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"