diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 929ba458f..1629634c3 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.1.0-1"
-export PIKA_PACKAGE_NAME="python-resolvelib"
+export PIKA_PACKAGE_VERSION="4.0.0-3.1"
+export PIKA_PACKAGE_NAME="ms-gsl"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"