diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 246b782fc..82cb8138c 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.20.3-2"
-export PIKA_PACKAGE_NAME="golang-github-prometheus-client-golang"
+export PIKA_PACKAGE_VERSION="0.5.5-1"
+export PIKA_PACKAGE_NAME="pykulersky"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"