diff --git a/rustler/Cargo.toml b/rustler/Cargo.toml
index e5c53a99..343d0664 100644
--- a/rustler/Cargo.toml
+++ b/rustler/Cargo.toml
@@ -2,7 +2,7 @@
 name = "rustler"
 description = "Safe Rust wrappers for creating Erlang NIF functions"
 repository = "https://github.com/rusterlium/rustler"
-version = "0.30.0" # rustler version
+version = "0.31.0" # rustler version
 authors = ["Hansihe <me@hansihe.com>"]
 license = "MIT/Apache-2.0"
 readme = "../README.md"
@@ -19,7 +19,7 @@ nif_version_2_17 = ["nif_version_2_16", "rustler_sys/nif_version_2_17"]
 
 [dependencies]
 lazy_static = "1.4"
-rustler_codegen = { path = "../rustler_codegen", version = "0.30.0", optional = true}
+rustler_codegen = { path = "../rustler_codegen", version = "0.31.0", optional = true}
 rustler_sys = { path = "../rustler_sys", version = "~2.3.0" }
 
 [package.metadata.release]
diff --git a/rustler_bigint/Cargo.toml b/rustler_bigint/Cargo.toml
index 87664709..fff56948 100644
--- a/rustler_bigint/Cargo.toml
+++ b/rustler_bigint/Cargo.toml
@@ -11,4 +11,4 @@ keywords = ["bigint", "Erlang", "Elixir"]
 
 [dependencies]
 num-bigint = {version = "0.4"}
-rustler = {path = "../rustler", version = "0.30.0"}
+rustler = {path = "../rustler", version = "0.31.0"}
diff --git a/rustler_codegen/Cargo.toml b/rustler_codegen/Cargo.toml
index 69db7d66..412432d0 100644
--- a/rustler_codegen/Cargo.toml
+++ b/rustler_codegen/Cargo.toml
@@ -2,7 +2,7 @@
 name = "rustler_codegen"
 description = "Compiler plugin for Rustler"
 repository = "https://github.com/rusterlium/rustler/tree/master/rustler_codegen"
-version = "0.30.0" # rustler_codegen version
+version = "0.31.0" # rustler_codegen version
 authors = ["Hansihe <hansihe@hansihe.com>"]
 license = "MIT/Apache-2.0"
 readme = "../README.md"
diff --git a/rustler_mix/README.md b/rustler_mix/README.md
index 3a78db7a..8def5646 100644
--- a/rustler_mix/README.md
+++ b/rustler_mix/README.md
@@ -15,7 +15,7 @@ This package is available on [Hex.pm](https://hex.pm/packages/rustler). To insta
 ```elixir
 def deps do
   [
-    {:rustler, "~> 0.30.0", runtime: false}
+    {:rustler, "~> 0.31.0", runtime: false}
   ]
 end
 ```
diff --git a/rustler_mix/lib/rustler.ex b/rustler_mix/lib/rustler.ex
index 226ff087..60b16d55 100644
--- a/rustler_mix/lib/rustler.ex
+++ b/rustler_mix/lib/rustler.ex
@@ -170,7 +170,7 @@ defmodule Rustler do
   end
 
   @doc false
-  def rustler_version, do: "0.30.0"
+  def rustler_version, do: "0.31.0"
 
   @doc """
   Supported NIF API versions.
diff --git a/rustler_mix/mix.exs b/rustler_mix/mix.exs
index 980f5d6b..aea65760 100644
--- a/rustler_mix/mix.exs
+++ b/rustler_mix/mix.exs
@@ -2,7 +2,7 @@ defmodule Rustler.Mixfile do
   use Mix.Project
 
   @source_url "https://github.com/rusterlium/rustler"
-  @version "0.30.0"
+  @version "0.31.0"
 
   def project do
     [