diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 13c1be563..a6fdbeda2 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.9.7+ds-1"
-export PIKA_PACKAGE_NAME="gap-laguna"
+export PIKA_PACKAGE_VERSION="20.1.1-1.3"
+export PIKA_PACKAGE_NAME="mlucas"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"