diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 036639e70..7dd2d11a3 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.5.0-5"
-export PIKA_PACKAGE_NAME="cfitsio"
+export PIKA_PACKAGE_VERSION="1.7.2+ds-3"
+export PIKA_PACKAGE_NAME="ruby-rugged"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"