diff --git a/challenges/basic-bonfires.json b/challenges/basic-bonfires.json
index a6ea1d9310..711a9bbaf6 100644
--- a/challenges/basic-bonfires.json
+++ b/challenges/basic-bonfires.json
@@ -667,12 +667,12 @@
         "Array.sort()"
       ],
       "tests": [
-        "expect(where([10, 20, 30, 40, 50], 35)).to.equal(3);",
-        "expect(where([10, 20, 30, 40, 50], 30)).to.equal(2);",
-        "expect(where([40, 60], 50)).to.equal(1);",
-        "expect(where([5, 3, 20, 3], 3)).to.equal(0);",
-        "expect(where([2, 20, 10], 1)).to.equal(0);",
-        "expect(where([2, 5, 10], 15)).to.equal(3);"
+        "assert.strictEqual(where([10, 20, 30, 40, 50], 35), 3, '35 should be placed at index 3');",
+        "assert.strictEqual(where([10, 20, 30, 40, 50], 30), 2, '30 should be placed at index 2');",
+        "assert.strictEqual(where([40, 60], 50), 1, '50 should be placed at index 1');",
+        "assert.strictEqual(where([5, 3, 20, 3], 3), 0, '3 should be placed at index 0');",
+        "assert.strictEqual(where([2, 20, 10], 1), 0, '1 should be placed at index 1');",
+        "assert.strictEqual(where([2, 5, 10], 15), 3, '15 should be placed at index 3');"
       ],
       "type": "bonfire",
       "challengeType": 5,