diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2c16fdde9..c7e85ebcf 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.9.2-2"
-export PIKA_PACKAGE_NAME="rust-custom-error"
+export PIKA_PACKAGE_VERSION="2.4.1-1"
+export PIKA_PACKAGE_NAME="rust-half"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"