diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 606aa94f8..468ec9272 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.43.1-5"
-export PIKA_PACKAGE_NAME="binutils"
+export PIKA_PACKAGE_VERSION="4.5-1"
+export PIKA_PACKAGE_NAME="kas"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"