diff --git a/‎gitlab/exceptions.py‎
Lines changed: 3 additions & 0 deletions b/‎gitlab/exceptions.py‎
Lines changed: 3 additions & 0 deletions
diff --git a/‎gitlab/objects.py‎
Lines changed: 5 additions & 0 deletions b/‎gitlab/objects.py‎
Lines changed: 5 additions & 0 deletions
@@ -110,6 +110,9 @@ class GitlabMRClosedError(GitlabOperationError):
 class GitlabMROnBuildSuccessError(GitlabOperationError):
     pass
 
+class GitlabServiceSlackError(GitlabOperationError):
+    pass
+
 
 def raise_error_from_response(response, error, expected_code=200):
     """Tries to parse gitlab error message from response and raises error.
 
@@ -1956,6 +1956,11 @@ def update_file(self, path, branch, content, message, **kwargs):
         r = self.gitlab._raw_put(url, data=None, content_type=None, **kwargs)
         raise_error_from_response(r, GitlabUpdateError)
 
+    def slack_service(self, webhook, username=None, channel=None, **kwargs):
+        url = "/projects/%s/services/slack" % self.id
+        r = self.gitlab._raw_put(url, data={'webhook': webhook, 'username': username, 'channel': channel}, **kwargs)
+        raise_error_from_response(r, GitlabServiceSlackError)
+
     def delete_file(self, path, branch, message, **kwargs):
         warnings.warn("`delete_file` is deprecated, "
                       "use `files.delete()` instead",