diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index d8b5b48d5..aeb31ba18 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2024.4-1"
-export PIKA_PACKAGE_NAME="gromacs"
+export PIKA_PACKAGE_VERSION="1.19.0-1"
+export PIKA_PACKAGE_NAME="specutils"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"