diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 43819e759..cf1f2d7b4 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.2.6-3"
-export PIKA_PACKAGE_NAME="haskell-lens-action"
+export PIKA_PACKAGE_VERSION="1.5.1-4"
+export PIKA_PACKAGE_NAME="haskell-what4"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"