diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c62bde667..e3343c4d1 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.4.4-2"
-export PIKA_PACKAGE_NAME="rust-copypasta-ext"
+export PIKA_PACKAGE_VERSION="0.8.2.1+dfsg2-1"
+export PIKA_PACKAGE_NAME="kalkun"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"