diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c5e8f5a96..b7d16ae10 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="5.13.2-2"
-export PIKA_PACKAGE_NAME="isort"
+export PIKA_PACKAGE_VERSION="2.4.2-1.2"
+export PIKA_PACKAGE_NAME="eiskaltdcpp"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"