diff --git a/dvc/stage/__init__.py b/dvc/stage/__init__.py
index 866203001f..85615c43f8 100644
--- a/dvc/stage/__init__.py
+++ b/dvc/stage/__init__.py
@@ -3,7 +3,7 @@
 import string
 from collections import defaultdict
 
-from funcy import project
+from funcy import cached_property, project
 
 import dvc.dependency as dependency
 import dvc.prompt as prompt
@@ -127,6 +127,8 @@ def path(self):
     @path.setter
     def path(self, path):
         self._path = path
+        self.__dict__.pop("path_in_repo", None)
+        self.__dict__.pop("relpath", None)
 
     @property
     def dvcfile(self):
@@ -172,11 +174,11 @@ def __eq__(self, other):
             and self.path_in_repo == other.path_in_repo
         )
 
-    @property
+    @cached_property
     def path_in_repo(self):
         return relpath(self.path, self.repo.root_dir)
 
-    @property
+    @cached_property
     def relpath(self):
         return relpath(self.path)
 
diff --git a/tests/func/test_stage.py b/tests/func/test_stage.py
index f2c00113b9..aabe42f072 100644
--- a/tests/func/test_stage.py
+++ b/tests/func/test_stage.py
@@ -220,6 +220,10 @@ def test_stage_strings_representation(tmp_dir, dvc, run_copy):
     folder = tmp_dir / "dir"
     folder.mkdir()
     with folder.chdir():
+        # `Stage` caches `relpath` results, forcing it to reset
+        stage1.path = stage1.path
+        stage2.path = stage2.path
+
         rel_path = os.path.relpath(stage1.path)
         assert stage1.addressing == rel_path
         assert repr(stage1) == f"Stage: '{rel_path}'"