diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e52cd505e..a6eb55c12 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1:0.64+git20241106~dfsg-1"
-export PIKA_PACKAGE_NAME="libuser"
+export PIKA_PACKAGE_VERSION="11.5.0-2"
+export PIKA_PACKAGE_NAME="gcc-11"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"