diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 8d9c94360..da9edb806 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.0+git20241031.b424440+dfsg-1"
-export PIKA_PACKAGE_NAME="chez-srfi"
+export PIKA_PACKAGE_VERSION="3.12.8-4"
+export PIKA_PACKAGE_NAME="python3.12"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"