diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index a8e5d5eff..b09e27df9 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.2.3.post1-1"
-export PIKA_PACKAGE_NAME="python-zopfli"
+export PIKA_PACKAGE_VERSION="5.3.101-1"
+export PIKA_PACKAGE_NAME="bcmatroska2"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"