diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index d7c76123f..6be75f4f6 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.15.2+ds-5"
-export PIKA_PACKAGE_NAME="c-blosc2"
+export PIKA_PACKAGE_VERSION="1:0.16.6-15"
+export PIKA_PACKAGE_NAME="sitecopy"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"