diff --git a/pkg/pathexpr/deprecated.go b/pkg/pathexpr/deprecated.go
deleted file mode 100644
index de0c2b4..0000000
--- a/pkg/pathexpr/deprecated.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// SPDX-FileCopyrightText: 2023 Christoph Mewes
-// SPDX-License-Identifier: MIT
-
-package pathexpr
-
-// These types are deprecated, use jsonpath package instead.
-
-type ObjectReader interface {
-	GetObjectKey(name string) (any, error)
-}
-
-type ObjectWriter interface {
-	ObjectReader
-	SetObjectKey(name string, value any) (any, error)
-}