diff --git a/platformio.ini b/platformio.ini
index 67b5dae..e02c760 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -37,7 +37,7 @@ lib_deps =
 [env:nodemcuv2]
 platform = espressif8266
 board = nodemcuv2
-lib_deps +=
+lib_deps =
   ${env.lib_deps}
   ESP8266WiFi
   Servo(esp8266)
@@ -45,7 +45,7 @@ lib_deps +=
 [env:huzzah]
 platform = espressif8266
 board = huzzah
-lib_deps +=
+lib_deps =
   ${env.lib_deps}
   ESP8266WiFi
   Servo(esp8266)
@@ -55,7 +55,7 @@ build_unflags = -std=gnu++11
 build_flags = -std=gnu++14 ; AsyncTCP wants this.
 platform = espressif32
 board = featheresp32
-lib_deps +=
+lib_deps =
   ${env.lib_deps}
   1826@1.0.3 ; AsyncTCP
 
@@ -64,6 +64,6 @@ build_unflags = -std=gnu++11
 build_flags = -std=gnu++14 ; AsyncTCP wants this.
 platform = espressif32
 board = nodemcu-32s
-lib_deps +=
+lib_deps =
   ${env.lib_deps}
   1826@1.0.3 ; AsyncTCP