diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 78ad30b60..f6be067ef 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.2.0+ds-3"
-export PIKA_PACKAGE_NAME="golang-github-valyala-histogram"
+export PIKA_PACKAGE_VERSION="5.7.3-2"
+export PIKA_PACKAGE_NAME="swiftlang"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"