diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 7ca8898af..2ea5eea58 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.5.2.2-3"
-export PIKA_PACKAGE_NAME="haskell-io-streams"
+export PIKA_PACKAGE_VERSION="1.5.2-2"
+export PIKA_PACKAGE_NAME="python-arcam-fmj"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"