diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 879c90bd1..e4eb0bdcc 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="7.1.3+dfsg-1"
-export PIKA_PACKAGE_NAME="symfony"
+export PIKA_PACKAGE_VERSION="23.10.4-2"
+export PIKA_PACKAGE_NAME="constantly"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"