diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 8fa9a536e..a01a4fd33 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.07-1.1"
-export PIKA_PACKAGE_NAME="libdata-streamserializer-perl"
+export PIKA_PACKAGE_VERSION="1:1.15.0+ds-2"
+export PIKA_PACKAGE_NAME="spdlog"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"