diff --git a/esp32-hal/Cargo.toml b/esp32-hal/Cargo.toml
index 964c72167..3cd3bd5d9 100644
--- a/esp32-hal/Cargo.toml
+++ b/esp32-hal/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name    = "esp32-hal"
-version = "0.1.0"
+version = "0.4.0"
 authors = [
     "Jesse Braham <jesse@beta7.io>",
     "Björn Quentin <bjoern.quentin@mobile-j.de>",