diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 620aafee3..dff739911 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.0.4-2"
-export PIKA_PACKAGE_NAME="haskell-binary-instances"
+export PIKA_PACKAGE_VERSION="2.1.4-1"
+export PIKA_PACKAGE_NAME="haskell-trifecta"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"