diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e6f0f41b3..ddfcebba5 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="5.0+ds-2"
-export PIKA_PACKAGE_NAME="orthanc-python"
+export PIKA_PACKAGE_VERSION="5.3.105+dfsg-1"
+export PIKA_PACKAGE_NAME="belle-sip"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"