diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 6cc843ba3..b09250d51 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.0.0~alpha5+20240908-4"
-export PIKA_PACKAGE_NAME="rust-imap-codec"
+export PIKA_PACKAGE_VERSION="4.0-1"
+export PIKA_PACKAGE_NAME="haskell-copilot-c99"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"