1 files changed, 19 insertions, 1 deletions
diff --git a/jsonschema/exceptions.py b/jsonschema/exceptions.py
index 149d838..5e88d74 100644
--- a/jsonschema/exceptions.py
+++ b/jsonschema/exceptions.py
@@ -9,6 +9,7 @@ from textwrap import dedent, indent
 from typing import ClassVar
 import heapq
 import itertools
+import warnings
 
 import attr
 
@@ -20,6 +21,17 @@ STRONG_MATCHES: frozenset[str] = frozenset()
 _unset = _utils.Unset()
 
 
+def __getattr__(name):
+    if name == "RefResolutionError":
+        warnings.warn(
+            _RefResolutionError._DEPRECATION_MESSAGE,
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        return _RefResolutionError
+    raise AttributeError(f"module {__name__} has no attribute {name}")
+
+
 class _Error(Exception):
 
     _word_for_schema_in_error_message: ClassVar[str]
@@ -181,11 +193,17 @@ class SchemaError(_Error):
 
 
 @attr.s(hash=True)
-class RefResolutionError(Exception):
+class _RefResolutionError(Exception):
     """
     A ref could not be resolved.
     """
 
+    _DEPRECATION_MESSAGE = (
+        "jsonschema.exceptions.RefResolutionError is deprecated as of version "
+        "4.18.0. If you wish to catch potential reference resolution errors, "
+        "directly catch referencing.exceptions.Unresolvable."
+    )
+
     _cause = attr.ib()
 
     def __str__(self):