diff --git a/README.md b/README.md
index 514c776..23a8097 100644
--- a/README.md
+++ b/README.md
@@ -10,14 +10,14 @@ Here are some related tutorials to help you get started with BitGadget Kit.
 ### 1.1 Implementation
 We'll make a LED controller that shows different light displays by rotating the rotary angle sensor.
 <p align = "left">
-    <img src="https://docproxy.chmakered.com/server/../Public/Uploads/2019-11-05/5dc0eb0ec788d.png" alt="">
+    <img src="https://docproxy.chmakered.com/Public/Uploads/2019-11-05/5dc0eb0ec788d.png" alt="">
 </p>
 
 ### 1.2 Write a Program
 Let's go to MakeCode: https://makecode.microbit.org
 Create a new project. Firstly add a "forever" block and connect the block "plot bar graph of up to" into it. Then add a "analog read pin" block. Set the maximum as 1023, which is the greatest value that the rotary angle sensor can produce. Finally, connect a "pause" block and set the time delay as 1,000 millisecond.
 <p align = "left">
-    <img src="https://docproxy.tinkergen.com/server/../Public/Uploads/2020-03-16/5e6f524c028a9.png" alt=""></p>
+    <img src="https://docproxy.tinkergen.com/server/../Public/Uploads/2020-03-16/5e6f524c028a9.png" alt="">
 </p>
 
 ### 1.3 Connect a Device
@@ -44,8 +44,8 @@ Let's take the challenge to another level. In this project, we'll make the RGB L
 <img src="https://docproxy.tinkergen.com/server/../Public/Uploads/2020-03-16/5e6f53376d166.png" alt=""></p>
 <p>Step 2  Select "Extensions" from the drop-down list which takes you to the extensions page.
 <img src="https://docproxy.tinkergen.com/server/../Public/Uploads/2020-03-16/5e6f5345efa5c.png" alt=""></p>
-<p>Step 3 Input the address of the BitGadget Kit extension into the search box: https://github.com/TinkerGen/pxt-Bit-GadgetKit or input key word: **Bit GadgetKit**
-<img src="https://docproxy.tinkergen.com/server/../Public/Uploads/2020-03-16/5e6f5363b7fb0.png" alt=""></p>
+<p>Step 3 Input the key word of the BitGadget Kit extension into the search box: Bit GadgetKit or bit-gadgetkit
+</p>
 <blockquote>
 <p>If a prompt says that this extension does not exist, please close the browser and try again.</p>
 </blockquote>
diff --git a/pxt.json b/pxt.json
index ecd09e9..c28f735 100644
--- a/pxt.json
+++ b/pxt.json
@@ -6,8 +6,8 @@
     "dependencies": {
         "core": "*",
         "radio": "*",
-        "BitMaker": "github:TinkerGen/pxt-BitMaker#v0.1.3",
-        "Grove": "github:TinkerGen/pxt-Grove#v0.1.0",
+        "BitMaker": "github:TinkerGen/pxt-BitMaker#v0.1.4",
+        "Grove": "github:TinkerGen/pxt-Grove#v0.1.1",
         "neopixel": "github:microsoft/pxt-neopixel#v0.6.10"
     },
     "files": [