diff --git a/docs/changes.rst b/docs/changes.rst
index 6a43ab8..9575f40 100644
--- a/docs/changes.rst
+++ b/docs/changes.rst
@@ -2,6 +2,12 @@
 Changelog
 =========
 
+v0.34.0
+-------
+
+* Also look inside ``definitions`` keywords even on newer dialects.
+  The specification recommends doing so regardless of the rename to ``$defs``.
+
 v0.33.0
 -------
 
diff --git a/referencing/jsonschema.py b/referencing/jsonschema.py
index 2eb1647..fb8668a 100644
--- a/referencing/jsonschema.py
+++ b/referencing/jsonschema.py
@@ -377,6 +377,7 @@ def maybe_in_subresource(
         in_subarray={"allOf", "anyOf", "oneOf", "prefixItems"},
         in_subvalues={
             "$defs",
+            "definitions",
             "dependentSchemas",
             "patternProperties",
             "properties",
@@ -400,6 +401,7 @@ def maybe_in_subresource(
         in_subarray={"allOf", "anyOf", "oneOf", "prefixItems"},
         in_subvalues={
             "$defs",
+            "definitions",
             "dependentSchemas",
             "patternProperties",
             "properties",
@@ -427,6 +429,7 @@ def maybe_in_subresource(
         in_subarray={"allOf", "anyOf", "oneOf"},
         in_subvalues={
             "$defs",
+            "definitions",
             "dependentSchemas",
             "patternProperties",
             "properties",
@@ -450,6 +453,7 @@ def maybe_in_subresource(
         in_subarray={"allOf", "anyOf", "oneOf"},
         in_subvalues={
             "$defs",
+            "definitions",
             "dependentSchemas",
             "patternProperties",
             "properties",