diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index ab8ea2990..f4b018c89 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="5.15.15-2"
-export PIKA_PACKAGE_NAME="qtwebsockets-opensource-src"
+export PIKA_PACKAGE_VERSION="1.7.1-1"
+export PIKA_PACKAGE_NAME="hexwalk"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"