diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 9848ea021..b8a1a6cb9 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.3.2+dfsg-1"
-export PIKA_PACKAGE_NAME="r-cran-promises"
+export PIKA_PACKAGE_VERSION="5.7.4-1"
+export PIKA_PACKAGE_NAME="python-pyfakefs"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"