diff --git a/pages/PredictionsThatWork.html b/pages/PredictionsThatWork.html
index a051b1a..814f04c 100644
--- a/pages/PredictionsThatWork.html
+++ b/pages/PredictionsThatWork.html
@@ -27,7 +27,7 @@ <h3>Approach:</h3>
 
             <h3>Resources:</h3>
             <ul>
-                <li><a href="http://nationalgeographic.org/activity/using-models-make-predictions/">
+                <li><a href="https://education.nationalgeographic.org/resource/using-models-make-predictions/">
                     Using Models to Make Predictions</a>, National Geographic.</li>
                 <li><a href="https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics
         /cc-7th-theoretical-and-experimental-probability/e/using-probability-to-make-predictions">