diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 39e7be1ee..a7402a0e7 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="20090426.1746-6"
-export PIKA_PACKAGE_NAME="libautobox-dump-perl"
+export PIKA_PACKAGE_VERSION="10.0.0+dfsg-5"
+export PIKA_PACKAGE_NAME="chezscheme"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"