diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e86b3ba67..df82c1ff2 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.0.10+really3.0.9-1"
-export PIKA_PACKAGE_NAME="guile-3.0"
+export PIKA_PACKAGE_VERSION="0.41.0-2"
+export PIKA_PACKAGE_NAME="phosh"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"