diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 4a2c7a252..b8a44d9df 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.10.6+ds-1"
-export PIKA_PACKAGE_NAME="tools-build-clojure"
+export PIKA_PACKAGE_VERSION="0.5.1+dfsg-3"
+export PIKA_PACKAGE_NAME="unicycler"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"