diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c6dd17982..d6e9171e7 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.4-4-1"
-export PIKA_PACKAGE_NAME="r-cran-phytools"
+export PIKA_PACKAGE_VERSION="16.1"
+export PIKA_PACKAGE_NAME="auto-apt-proxy"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"