diff --git a/requirements.txt b/requirements.txt
index 3912f099df..4e32753ba3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ tornado==6.1
 tzlocal==3.0    # from time
 tzdata>=2021.1  # from time
 pyserial==3.5
-platformio==5.2.0
+platformio==5.2.1
 esptool==3.1
 click==8.0.3
 esphome-dashboard==20211006.0