diff --git a/lvgl-codegen/Cargo.toml b/lvgl-codegen/Cargo.toml
index 635a7e9..c26278b 100644
--- a/lvgl-codegen/Cargo.toml
+++ b/lvgl-codegen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lvgl-codegen"
-version = "0.3.3"
+version = "0.4.0"
 description = "Code generation based on LVGL source code"
 authors = ["Rafael Caricio <crates.lvgl@caric.io>"]
 readme = "README.md"
diff --git a/lvgl-sys/Cargo.toml b/lvgl-sys/Cargo.toml
index c28513b..a2d9690 100644
--- a/lvgl-sys/Cargo.toml
+++ b/lvgl-sys/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "lvgl-sys"
 description = "Raw bindings to the LittlevGL C library."
-version = "0.3.3"
+version = "0.4.0"
 authors = ["Rafael Caricio <crates.lvgl-sys@caric.io>"]
 edition = "2018"
 license = "MIT"
diff --git a/lvgl/Cargo.toml b/lvgl/Cargo.toml
index 115c754..2af077e 100644
--- a/lvgl/Cargo.toml
+++ b/lvgl/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "lvgl"
 description = "LittlevGL bindings for Rust. A powerful and easy-to-use embedded GUI with many widgets, advanced visual effects (opacity, antialiasing, animations) and low memory requirements (16K RAM, 64K Flash)."
-version = "0.3.3"
+version = "0.4.0"
 authors = ["Rafael Caricio <crates.lvgl@caric.io>"]
 edition = "2018"
 repository = "https://github.com/rafaelcaricio/lvgl-rs"
@@ -12,7 +12,7 @@ keywords = ["littlevgl", "lvgl", "graphical_interfaces"]
 build = "build.rs"
 
 [dependencies]
-lvgl-sys = { version = "0.3.3", path = "../lvgl-sys" }
+lvgl-sys = { version = "0.4.0", path = "../lvgl-sys" }
 cty = "0.2.1"
 embedded-graphics = "0.6.2"
 cstr_core = { version = "0.2.0" }
@@ -21,6 +21,6 @@ bitflags = "1.2.1"
 [build-dependencies]
 quote = "1.0.7"
 proc-macro2 = "1.0.18"
-lvgl-codegen = { version = "0.3.3", path = "../lvgl-codegen" }
-lvgl-sys = { version = "0.3.3", path = "../lvgl-sys" }
+lvgl-codegen = { version = "0.4.0", path = "../lvgl-codegen" }
+lvgl-sys = { version = "0.4.0", path = "../lvgl-sys" }