diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c11bbe5dd..646b5803d 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.72-3"
-export PIKA_PACKAGE_NAME="autoconf"
+export PIKA_PACKAGE_VERSION="4.2.1+dfsg-1"
+export PIKA_PACKAGE_NAME="r-bioc-edger"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"