diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 4c503920d..c98c60854 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.10.9.0-2"
-export PIKA_PACKAGE_NAME="haskell-swish"
+export PIKA_PACKAGE_VERSION="0.1.1-4"
+export PIKA_PACKAGE_NAME="turtlefmt"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"