diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 31cdab414..e79e4a6c4 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1:6.18.1+dfsg-3"
-export PIKA_PACKAGE_NAME="csound"
+export PIKA_PACKAGE_VERSION="6.0.5-1"
+export PIKA_PACKAGE_NAME="python-multidict"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"