diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index b8df63c23..450f30a55 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.5.0.2-3"
-export PIKA_PACKAGE_NAME="haskell-exact-pi"
+export PIKA_PACKAGE_VERSION="1.10.3-3"
+export PIKA_PACKAGE_NAME="haskell-x11"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"