diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 7ba63d703..33190a082 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.14.4-3"
-export PIKA_PACKAGE_NAME="rust-darling-core-0.14"
+export PIKA_PACKAGE_VERSION="2.10.0-5"
+export PIKA_PACKAGE_NAME="rust-zvariant-2"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"