diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index f46cfacd0..4f5001912 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="6.4.39-1"
-export PIKA_PACKAGE_NAME="fetchmail"
+export PIKA_PACKAGE_VERSION="1:0.8.1+git20230727.1.4c6b18f-2"
+export PIKA_PACKAGE_NAME="gnuplot-mode"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"