diff --git a/platform.json b/platform.json
index 7341730..0442c17 100644
--- a/platform.json
+++ b/platform.json
@@ -6,13 +6,13 @@
   "homepage": "http://platformio.org/platforms/espressif32",
   "license": "Apache-2.0",
   "engines": {
-    "platformio": "^3.0.0"
+    "platformio": "<5"
   },
   "repository": {
     "type": "git",
     "url": "https://github.com/platformio/platform-espressif32.git"
   },
-  "version": "1.5.0",
+  "version": "1.6.0",
   "packageRepositories": [
     "https://dl.bintray.com/platformio/dl-packages/manifest.json",
     "http://dl.platformio.org/packages/manifest.json",