diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 1fd950a9a..1bb04c42b 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1:9.20.4-4"
-export PIKA_PACKAGE_NAME="bind9"
+export PIKA_PACKAGE_VERSION="2.12.1-3"
+export PIKA_PACKAGE_NAME="libsigc++-2.0"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"