diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 58a4c8513..403a5e74a 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.11.2+dfsg-2"
-export PIKA_PACKAGE_NAME="ez-vcard"
+export PIKA_PACKAGE_VERSION="1.9.0-4"
+export PIKA_PACKAGE_NAME="rust-portable-atomic"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"