diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 8c0d66a30..0e2e0d19b 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.0+git20240928.c8bb1c6-1"
-export PIKA_PACKAGE_NAME="cppgir"
+export PIKA_PACKAGE_VERSION="0.4.2-3"
+export PIKA_PACKAGE_NAME="python-gplearn"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"