diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index af1a0be0f..25252deef 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="7.9.0-2"
-export PIKA_PACKAGE_NAME="python-calendra"
+export PIKA_PACKAGE_VERSION="1.10+git20240531-1"
+export PIKA_PACKAGE_NAME="deheader"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"