diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 67beaba19..89b804c83 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.3.2-4"
-export PIKA_PACKAGE_NAME="haskell-network-multicast"
+export PIKA_PACKAGE_VERSION="0.3.0-2"
+export PIKA_PACKAGE_NAME="haskell-language-c99-simple"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"