diff --git a/pyls/python_ls.py b/pyls/python_ls.py
index 04a3b42f..9e091413 100644
--- a/pyls/python_ls.py
+++ b/pyls/python_ls.py
@@ -291,10 +291,12 @@ def hover(self, doc_uri, position):
     def lint(self, doc_uri, is_saved):
         # Since we're debounced, the document may no longer be open
         workspace = self._match_uri_to_workspace(doc_uri)
+        textDocument = workspace.get_maybe_document(doc_uri)
         if doc_uri in workspace.documents:
             workspace.publish_diagnostics(
                 doc_uri,
-                flatten(self._hook('pyls_lint', doc_uri, is_saved=is_saved))
+                flatten(self._hook('pyls_lint', doc_uri, is_saved=is_saved)),
+                textDocument.version if textDocument else None
             )
 
     def references(self, doc_uri, position, exclude_declaration):
diff --git a/pyls/workspace.py b/pyls/workspace.py
index e3a7e7ab..4e5f4c1e 100644
--- a/pyls/workspace.py
+++ b/pyls/workspace.py
@@ -104,8 +104,12 @@ def update_config(self, settings):
     def apply_edit(self, edit):
         return self._endpoint.request(self.M_APPLY_EDIT, {'edit': edit})
 
-    def publish_diagnostics(self, doc_uri, diagnostics):
-        self._endpoint.notify(self.M_PUBLISH_DIAGNOSTICS, params={'uri': doc_uri, 'diagnostics': diagnostics})
+    def publish_diagnostics(self, doc_uri, diagnostics, version):
+        self._endpoint.notify(self.M_PUBLISH_DIAGNOSTICS, params={
+          'uri': doc_uri,
+          'diagnostics': diagnostics,
+          'version': version
+        })
 
     def show_message(self, message, msg_type=lsp.MessageType.Info):
         self._endpoint.notify(self.M_SHOW_MESSAGE, params={'type': msg_type, 'message': message})