diff --git a/.github/actions/install-conta/action.yml b/.github/actions/install-conta/action.yml
new file mode 100644
index 000000000..28e013189
--- /dev/null
+++ b/.github/actions/install-conta/action.yml
@@ -0,0 +1,16 @@
+name: "Install conta"
+description: "Install conta for publishing packages"
+
+runs:
+  using: composite
+  steps:
+    - uses: actions/checkout@v4
+    - uses: dtolnay/rust-toolchain@stable
+
+    - uses: actions/cache@v3
+      with:
+        path: ~/.cargo/bin/conta
+        key: ${{ runner.os }}-conta
+
+    - name: Install Conta
+      run: cargo install conta
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 184be1496..968b3dffc 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,11 +13,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: ./.github/actions/install-conta
 
-      - name: Setup rust toolchain
-        uses: dtolnay/rust-toolchain@nightly
-
-      - name: Release packages to crates.io
-        run: cargo run --release --package conta publish
+      - name: Release packages on crates.io
+        run: conta publish
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
diff --git a/Cargo.lock b/Cargo.lock
index fa93fc781..6cc2cfa2d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -631,7 +631,6 @@ dependencies = [
  "anyhow",
  "cargo_metadata",
  "ccli",
- "clap",
  "colored",
  "etc",
  "semver",
diff --git a/Cargo.toml b/Cargo.toml
index b42d87ede..90ad30641 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,7 +28,6 @@ repository = "https://github.com/clearloop/zink.git"
 anyhow = "1.0.76"
 cargo_metadata = "0.18.1"
 ccli = "0.0.1"
-clap = "4.4.11"
 colored = "2.1.0"
 etc = "0.1.16"
 hex = "0.4.3"
@@ -66,6 +65,18 @@ zink-codegen = { path = "zink/codegen", version = "0.1.9" }
 zinkc = { path = "compiler", version = "0.1.9" }
 zint = { path = "zint", version = "0.1.9" }
 
+[workspace.metadata.conta]
+packages = [
+  "zabi",
+  "zingen",
+  "zinkc",
+  "filetests",
+  "zint",
+  "zink-codegen",
+  "zink",
+  "elko"
+]
+
 # Zink Programming Language
 # -------------------------
 
diff --git a/Conta.toml b/Conta.toml
deleted file mode 100644
index 088017e24..000000000
--- a/Conta.toml
+++ /dev/null
@@ -1,10 +0,0 @@
-packages = [
-  "zabi",
-  "zingen",
-  "zinkc",
-  "filetests",
-  "zint",
-  "zink-codegen",
-  "zink",
-  "elko"
-]
diff --git a/README.md b/README.md
index eab7ad2c6..beb84fae3 100644
--- a/README.md
+++ b/README.md
@@ -11,8 +11,7 @@
 [![telegram][telegram-badge]][telegram-group]
 
 [The Zink project][book] mainly provides a singlepass compiler `zinkc` which compiles
-WASM to EVM bytecode, the source code of your smart contract could be any language you
-like!
+WASM to EVM bytecode, the source code of your smart contracts could be any language you like!
 
 ```mermaid
 flowchart LR
diff --git a/RELEASES.md b/RELEASES.md
index e713d2a3f..80db66d47 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -8,6 +8,7 @@
 - Remove ethers
 - Move out ccli and conta
 - Use `anyhow::Result` instead for the result of `zint`
+- Remove clap in elko
 
 ### FIXED
 
diff --git a/elko/Cargo.toml b/elko/Cargo.toml
index 06463f044..726fb8ee2 100644
--- a/elko/Cargo.toml
+++ b/elko/Cargo.toml
@@ -11,7 +11,6 @@ repository.workspace = true
 [dependencies]
 anyhow.workspace = true
 ccli.workspace = true
-clap = { workspace = true, features = [ "derive" ] }
 cargo_metadata.workspace = true
 colored.workspace = true
 etc.workspace = true
diff --git a/elko/src/bin/elko.rs b/elko/src/bin/elko.rs
index 51465bd81..2493bffe4 100644
--- a/elko/src/bin/elko.rs
+++ b/elko/src/bin/elko.rs
@@ -1,7 +1,10 @@
 //! The package manager of zink.
 #![deny(missing_docs)]
 
-use ccli::{clap::Subcommand, App, Parser, Result};
+use ccli::{
+    clap::{self, Parser, Subcommand},
+    App, Result,
+};
 use elko::{Build, Compile, New};
 
 /// Elko commands
diff --git a/elko/src/build.rs b/elko/src/build.rs
index c3744e92b..4b13e8124 100644
--- a/elko/src/build.rs
+++ b/elko/src/build.rs
@@ -1,7 +1,7 @@
 //! Command `Build`.
 use crate::utils::WasmBuilder;
 use anyhow::{anyhow, Result};
-use clap::Parser;
+use ccli::clap::{self, Parser};
 use etc::{Etc, FileSystem};
 use std::{env, fs, path::PathBuf};
 use zinkc::Compiler;
diff --git a/elko/src/new.rs b/elko/src/new.rs
index bdbf4c23b..1558fe7a9 100644
--- a/elko/src/new.rs
+++ b/elko/src/new.rs
@@ -1,7 +1,7 @@
 //! Command `New`
 use crate::utils::Manifest;
 use anyhow::{anyhow, Result};
-use clap::Parser;
+use ccli::clap::{self, Parser};
 use colored::*;
 use std::{fs, path::PathBuf};