diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 879c90bd1..07da932a1 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="6.2.4+~1.2.1-1"
+export PIKA_PACKAGE_NAME="rstcheck"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"