diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index f6be067ef..8eb160324 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="5.7.3-2"
-export PIKA_PACKAGE_NAME="swiftlang"
+export PIKA_PACKAGE_VERSION="0.4-3"
+export PIKA_PACKAGE_NAME="python-rosettasciio"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"