diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index de26a3c4a..c95d1918d 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.29.1-1"
-export PIKA_PACKAGE_NAME="python-advanced-alchemy"
+export PIKA_PACKAGE_VERSION="2.7.0-31"
+export PIKA_PACKAGE_NAME="gcl27"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"