diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 1e8e3e92e..21070d628 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.0.42-1"
-export PIKA_PACKAGE_NAME="php-phpseclib3"
+export PIKA_PACKAGE_VERSION="9.6.21-1"
+export PIKA_PACKAGE_NAME="phpunit"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"