diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e74754277..493ae16ae 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.0207+dfsg+really+2.0134-5"
-export PIKA_PACKAGE_NAME="libxml-libxml-perl"
+export PIKA_PACKAGE_VERSION="3.1-3-1"
+export PIKA_PACKAGE_NAME="car"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"