diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 3d86d3313..5d39fe6c8 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.98-3"
-export PIKA_PACKAGE_NAME="exim4"
+export PIKA_PACKAGE_VERSION="5.2.0-5"
+export PIKA_PACKAGE_NAME="bcmatroska2"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"