diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 3c5911ae2..db32a393d 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.2.1.1-1"
-export PIKA_PACKAGE_NAME="haskell-witch"
+export PIKA_PACKAGE_VERSION="0.16.1.20240818+dfsg1-1"
+export PIKA_PACKAGE_NAME="zutty"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"