diff --git a/volatility3/framework/layers/registry.py b/volatility3/framework/layers/registry.py
index c684ccd40..6d85da982 100644
--- a/volatility3/framework/layers/registry.py
+++ b/volatility3/framework/layers/registry.py
@@ -192,9 +192,9 @@ class RegistryHive(linear.LinearlyMappedLayer):
         while key_array and node_key:
             subkeys = node_key[-1].get_subkeys()
             for subkey in subkeys:
-                # registry keys are not case sensitive so compare lowercase
-                # https://msdn.microsoft.com/en-us/library/windows/desktop/ms724946(v=vs.85).aspx
-                if subkey.get_name().lower() == key_array[0].lower():
+                # registry keys are not case sensitive so compare likewise
+                # https://learn.microsoft.com/en-gb/windows/win32/sysinfo/structure-of-the-registry
+                if subkey.get_name().casefold() == key_array[0].casefold():
                     node_key = node_key + [subkey]
                     found_key, key_array = found_key + [key_array[0]], key_array[1:]
                     break