diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index fb864529b..2e139c70c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -375,8 +375,8 @@ there are standard reports, which extract useful data from the Journal or Ledger
 
 Here's a diagram of the main data model:
 
-<a href="dev/data-model.png" class="highslide" onclick="return hs.expand(this)">
-<img src="dev/data-model.png" alt="diagram" title="main data types" style="max-width:100%;">
+<a href="https://hledger.org/_static/images/data-model.png" class="highslide" onclick="return hs.expand(this)">
+<img src="https://hledger.org/_static/images/data-model.png" alt="diagram" title="main data types" style="max-width:100%;">
 </a>
 
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