Fixed #809 -- switch back to always using UnsupportedAlgorithm
diff --git a/docs/hazmat/primitives/cryptographic-hashes.rst b/docs/hazmat/primitives/cryptographic-hashes.rst
index c318fee..773d97f 100644
--- a/docs/hazmat/primitives/cryptographic-hashes.rst
+++ b/docs/hazmat/primitives/cryptographic-hashes.rst
@@ -29,7 +29,8 @@
         'l\xa1=R\xcap\xc8\x83\xe0\xf0\xbb\x10\x1eBZ\x89\xe8bM\xe5\x1d\xb2\xd29%\x93\xafj\x84\x11\x80\x90'
 
     If the backend doesn't support the requested ``algorithm`` an
-    :class:`~cryptography.exceptions.UnsupportedHash` exception will be raised.
+    :class:`~cryptography.exceptions.UnsupportedAlgorithm` exception will be
+    raised.
 
     Keep in mind that attacks against cryptographic hashes only get stronger
     with time, and that often algorithms that were once thought to be strong,
@@ -45,7 +46,7 @@
         :class:`~cryptography.hazmat.backends.interfaces.HashBackend`
         provider.
 
-    :raises cryptography.exceptions.UnsupportedInterface: This is raised if the
+    :raises cryptography.exceptions.UnsupportedAlgorithm: This is raised if the
         provided ``backend`` does not implement
         :class:`~cryptography.hazmat.backends.interfaces.HashBackend`