diff --git a/contents.json b/contents.json
index 8b54895b..87493122 100644
--- a/contents.json
+++ b/contents.json
@@ -3203,6 +3203,12 @@
       "description": "Test your app on different device and font sizes.",
       "homepage": "https://github.com/marcosgriselli/Sizes"
     },
+    {
+      "title": "swift-testing-expectation",
+      "category": "testing",
+      "description": "Create an asynchronous expectation in Swift Testing.",
+      "homepage": "https://github.com/dfed/swift-testing-expectation"
+    },
     {
       "title": "AttributedTextView",
       "category": "text",