diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 4effc9fef..75e93e206 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.0.2-1"
-export PIKA_PACKAGE_NAME="scheme-bytestructures"
+export PIKA_PACKAGE_VERSION="1.4.5-1"
+export PIKA_PACKAGE_NAME="python-scramp"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"