diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2e43ed7d7..bce8aea88 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.9.0-1"
-export PIKA_PACKAGE_NAME="rust-serde-with"
+export PIKA_PACKAGE_VERSION="0.10-2"
+export PIKA_PACKAGE_NAME="sagemath-database-conway-polynomials"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"