diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index a08023a85..f0e3530a8 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.17.9+ds1-1"
-export PIKA_PACKAGE_NAME="golang-github-klauspost-compress"
+export PIKA_PACKAGE_VERSION="6.9.1-1"
+export PIKA_PACKAGE_NAME="libphp-phpmailer"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"