diff --git a/docs/extensions.md b/docs/extensions.md
index a2f3afc0..8a9e0c08 100644
--- a/docs/extensions.md
+++ b/docs/extensions.md
@@ -341,6 +341,10 @@ Check out [microbit.org](http://microbit.org/resellers/) for more information on
     "name": "BMP280 Barrometer",
     "url": "/pkg/rebeccaclavier/pxt-bmp280",
     "cardType": "package"
+}, {
+    "name": "HTS221 Humidity and temperature",
+    "url": "/pkg/makecode-extensions/HTS221",
+    "cardType": "package"
 }]
 ```
 
diff --git a/targetconfig.json b/targetconfig.json
index 2d8eb3bb..f287d495 100644
--- a/targetconfig.json
+++ b/targetconfig.json
@@ -135,7 +135,8 @@
             "plenprojectcompany/pxt-PLENbit",
             "4tronix/MiniBit",
             "elecfreaks/pxt-wukong",
-            "rebeccaclavier/pxt-bmp280"
+            "rebeccaclavier/pxt-bmp280",
+            "makecode-extensions/HTS221"
         ],
         "preferredRepos": [
             "Microsoft/pxt-neopixel",