diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 181c720dd..5a62b244b 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.20240710.1"
-export PIKA_PACKAGE_NAME="amd64-microcode"
+export PIKA_PACKAGE_VERSION="1.96+dfsg-16.1"
+export PIKA_PACKAGE_NAME="ftpmirror"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"