diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e0e67daf5..8c300e799 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.11.19+ds-1"
-export PIKA_PACKAGE_NAME="metkit"
+export PIKA_PACKAGE_VERSION="6.4.5-1"
+export PIKA_PACKAGE_NAME="importlib-resources"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"