diff --git a/templates/_changelog.html b/templates/_changelog.html
index 6554a96..0f5bb16 100644
--- a/templates/_changelog.html
+++ b/templates/_changelog.html
@@ -9,7 +9,7 @@
     {%- else -%}
       ,
     {%- endif -%}
-  {%- endif %} <b>{{ key }}</b> to <code title="{{ value }}">{{ value|truncate(40) }}</code> {% endfor %}
+  {%- endif %} <b>{{ key }}</b> to <code title="{{ value }}">{{ value|string()|truncate(40) }}</code> {% endfor %}
 </p>
 {% endfor %}
 {% endmacro %}