diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 6df401488..a1be0e498 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.2.1-3"
-export PIKA_PACKAGE_NAME="haskell-code-page"
+export PIKA_PACKAGE_VERSION="0.4.1.3-11"
+export PIKA_PACKAGE_NAME="haskell-iconv"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"