diff --git a/doc/windows.md b/doc/windows.md
index 02986148..bbce29bf 100644
--- a/doc/windows.md
+++ b/doc/windows.md
@@ -11,7 +11,8 @@
 
     ```bash
     python -m pip install --upgrade pip && \
-    pip install pyserial
+    pip install pyserial && \
+    pip install requests
     ```
     ![Git Bash As Admin](gitbash-admin-start.png)
     ![Git Bash Admin CMD](gitbash-admin.png)