diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 330f1dec5..e291ba6f0 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.12.7.3-3"
-export PIKA_PACKAGE_NAME="haskell-websockets"
+export PIKA_PACKAGE_VERSION="2.45.6+ds-4"
+export PIKA_PACKAGE_NAME="prometheus"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"