diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 8a387b8e4..9d94a09d9 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.10-15-1"
-export PIKA_PACKAGE_NAME="r-cran-matching"
+export PIKA_PACKAGE_VERSION="5.1.0+dfsg-1"
+export PIKA_PACKAGE_NAME="mikutter"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"