diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e0a55cfef..e630c36bc 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.0~git20250113.158dfe2-1"
-export PIKA_PACKAGE_NAME="lxc-ci"
+export PIKA_PACKAGE_VERSION="2.31.1-1"
+export PIKA_PACKAGE_NAME="libisal"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"