diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index f718febc7..64ce4e416 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.39.0-2"
-export PIKA_PACKAGE_NAME="python-libtmux"
+export PIKA_PACKAGE_VERSION="4.0.1+dfsg-2"
+export PIKA_PACKAGE_NAME="libhmsbeagle"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"