diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index ee7ae561d..d0f028d0f 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.6.0-3"
-export PIKA_PACKAGE_NAME="ruby-ruby-magic-static"
+export PIKA_PACKAGE_VERSION="0.4.1-2"
+export PIKA_PACKAGE_NAME="python-sluurp"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"