diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c4706d12b..8eb6524cf 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.2.0-11"
-export PIKA_PACKAGE_NAME="mpich"
+export PIKA_PACKAGE_VERSION="0.13.6-1"
+export PIKA_PACKAGE_NAME="glymur"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b3"