diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2b278a3f9..08f0b90fe 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="6.1.0-2"
-export PIKA_PACKAGE_NAME="python-oslo.concurrency"
+export PIKA_PACKAGE_VERSION="0.4.3.2-1"
+export PIKA_PACKAGE_NAME="haskell-zip-archive"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"