diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 459b458ae..79385bdc8 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.7.1-2"
-export PIKA_PACKAGE_NAME="rust-debcargo"
+export PIKA_PACKAGE_VERSION="0.2.5-5"
+export PIKA_PACKAGE_NAME="haskell-src-exts-util"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"