diff --git a/platformio.ini b/platformio.ini
index 04835d6c0..abb9d364d 100755
--- a/platformio.ini
+++ b/platformio.ini
@@ -128,6 +128,6 @@ build_flags               = ${tasmota_core.build_flags}
 
 [tasmota_core]
 ; *** Esp8266 Arduino core 2.7.1
-platform                  = espressif8266@2.5.1
+platform                  = espressif8266@2.5.2
 platform_packages         = 
 build_flags               = ${esp82xx_defaults.build_flags}