diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index baeec6c08..13d803ab6 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.431-1"
-export PIKA_PACKAGE_NAME="libpdl-linearalgebra-perl"
+export PIKA_PACKAGE_VERSION="1.8.1-5"
+export PIKA_PACKAGE_NAME="esnacc"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"