diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 17965170e..566ca0964 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="5.115.0-2"
-export PIKA_PACKAGE_NAME="khtml"
+export PIKA_PACKAGE_VERSION="4:6.1.3-1"
+export PIKA_PACKAGE_NAME="plasma-desktop"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=true
 export PIKA_REBUILD_VERSION="b33"