diff --git a/docs/source/user_docs/exchange/img/submitted_html.png b/docs/source/user_docs/exchange/img/submitted_html.png
index 75084a47..c46247f1 100644
Binary files a/docs/source/user_docs/exchange/img/submitted_html.png and b/docs/source/user_docs/exchange/img/submitted_html.png differ
diff --git a/docs/source/user_docs/exchange/img/submitted_html_de.png b/docs/source/user_docs/exchange/img/submitted_html_de.png
index f2ddd0bc..0848b113 100644
Binary files a/docs/source/user_docs/exchange/img/submitted_html_de.png and b/docs/source/user_docs/exchange/img/submitted_html_de.png differ
diff --git a/e2xgrader/exporters/submissionexporter.py b/e2xgrader/exporters/submissionexporter.py
index 20e24f68..882d310c 100644
--- a/e2xgrader/exporters/submissionexporter.py
+++ b/e2xgrader/exporters/submissionexporter.py
@@ -51,7 +51,7 @@ def from_notebook_node(self, nb, resources=None, **kw):
         )
         hashcode_cell = new_markdown_cell(
             source=hashcode_template.render(
-                hashcode=resources["hashcode"],
+                hashcode=resources["hashcode"].upper(),
                 timestamp=resources["timestamp"],
                 exam_submitted_message=self.exam_submitted_message,
                 verify_exam_message=self.verify_exam_message,