diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index d4335b778..1d92084da 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,6 +1,6 @@
-export PIKA_PACKAGE_VERSION="5.3.0-1"
-export PIKA_PACKAGE_NAME="libqalculate"
+export PIKA_PACKAGE_VERSION="4:6.2.1-1"
+export PIKA_PACKAGE_NAME="plasma-desktop"
 export PIKA_PACKAGE_PATCH=false
-export PIKA_REBUILD=false
+export PIKA_REBUILD=true
 export PIKA_REBUILD_VERSION="b36"
 export PIKA_BUILD_ATTEMPT="36"
\ No newline at end of file