diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e9bdc5337..d8c261ac0 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.0.2-1"
-export PIKA_PACKAGE_NAME="haskell-monad-chronicle"
+export PIKA_PACKAGE_VERSION="0.3.1-7"
+export PIKA_PACKAGE_NAME="haskell-chunked-data"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"