diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index d701e6884..190739fda 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.8+dfsg1-2"
-export PIKA_PACKAGE_NAME="lazarus"
+export PIKA_PACKAGE_VERSION="6.12.11+1"
+export PIKA_PACKAGE_NAME="linux-signed-amd64"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"