diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 4b3e5e33f..349017a0f 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.2.3-1"
-export PIKA_PACKAGE_NAME="xpenguins"
+export PIKA_PACKAGE_VERSION="0.21.12-6"
+export PIKA_PACKAGE_NAME="rust-rustls"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"