diff --git a/docs/content/concepts/assets/graph-backed-assets.mdx b/docs/content/concepts/assets/graph-backed-assets.mdx
index d0a4d4d6bd51a..a3759648a8b3c 100644
--- a/docs/content/concepts/assets/graph-backed-assets.mdx
+++ b/docs/content/concepts/assets/graph-backed-assets.mdx
@@ -32,7 +32,7 @@ from dagster_slack import SlackResource
 
 
 @op
-def fetch_files_from_slack(context, slack: SlackResource) -> pd.DataFrame:
+def fetch_files_from_slack(slack: SlackResource) -> pd.DataFrame:
     files = slack.get_client().files_list(channel="#random")
     return pd.DataFrame(
         [
@@ -131,7 +131,7 @@ During execution, if we select just `baz_asset` for materialization, the below i
 
 ```python file=/concepts/assets/subset_graph_backed_asset.py startafter=start_graph_backed_asset_foo endbefore=end_graph_backed_asset_foo
 @op(out={"foo_1": Out(is_required=False), "foo_2": Out(is_required=False)})
-def foo(context, bar_1):
+def foo(context: OpExecutionContext, bar_1):
     # Selectively returns outputs based on selected assets
     if "foo_1" in context.selected_output_names:
         yield Output(bar_1 + 1, output_name="foo_1")