diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 832acec06..9d439819f 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.2.2-8"
-export PIKA_PACKAGE_NAME="haskell-cryptonite-conduit"
+export PIKA_PACKAGE_VERSION="1.9.0-1"
+export PIKA_PACKAGE_NAME="python-plumbum"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"