diff --git a/Cargo.lock b/Cargo.lock
index 463fe78..6d05bff 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -48,7 +48,7 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bs-telegram-bot"
-version = "0.7.1"
+version = "0.7.2"
 dependencies = [
  "env_logger",
  "futures",
diff --git a/Cargo.toml b/Cargo.toml
index c22f1c4..63505a2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bs-telegram-bot"
-version = "0.7.1"
+version = "0.7.2"
 authors = ["Pig Fang <g-plane@hotmail.com>"]
 edition = "2021"
 publish = false
diff --git a/src/diff.rs b/src/diff.rs
index 86db693..452c52f 100644
--- a/src/diff.rs
+++ b/src/diff.rs
@@ -2,6 +2,7 @@ use crate::bot::{Bot, BotError};
 use crate::github::{
     self,
     compare::{compare, Compare},
+    last_run_id,
 };
 use itertools::Itertools;
 use thiserror::Error;
@@ -10,9 +11,8 @@ pub async fn execute(
     bot: &Bot,
     base: Option<String>,
     head: Option<String>,
-    run_id: Option<String>,
 ) -> Result<(), DiffError> {
-    let git = git(base, head, run_id).await?;
+    let git = git(base, head).await?;
     bot.send_message(git, "HTML").await.map_err(DiffError::from)
 }
 
@@ -25,11 +25,7 @@ pub enum DiffError {
     Bot(#[from] BotError),
 }
 
-async fn git(
-    base: Option<String>,
-    head: Option<String>,
-    run_id: Option<String>,
-) -> Result<String, reqwest::Error> {
+async fn git(base: Option<String>, head: Option<String>) -> Result<String, reqwest::Error> {
     let base = if let Some(base) = base {
         base
     } else {
@@ -45,7 +41,7 @@ async fn git(
     let Compare { commits, files } = compare(&base, &head).await?;
     let log = format_log(&commits);
     let analysis = analyze_diff(diff(&files));
-    let artifact = format!("<a href=\"{}\">快照下载</a>", get_artifact_link(run_id));
+    let artifact = format!("<a href=\"{}\">快照下载</a>", get_artifact_link().await);
 
     Ok(format!("{}\n{}\n{}", log, analysis, artifact))
 }
@@ -153,16 +149,15 @@ fn format_log(log: &[github::Commit]) -> String {
         .join("\n")
 }
 
-fn get_artifact_link(run_id: Option<String>) -> String {
-    if let Some(run_id) = run_id {
-        format!(
-            "https://nightly.link/bs-community/blessing-skin-server/actions/runs/{}/artifact.zip",
-            run_id
-        )
-    } else {
-        "https://nightly.link/bs-community/blessing-skin-server/workflows/CI/dev/artifact.zip"
-            .to_string()
-    }
+async fn get_artifact_link() -> String {
+    let run_id = last_run_id(github::WORKFLOW_ID, "dev")
+        .await
+        .expect("Failed to get last run id")
+        .unwrap();
+    format!(
+        "https://nightly.link/bs-community/blessing-skin-server/actions/runs/{}/artifact.zip",
+        run_id
+    )
 }
 
 fn md2html(text: String) -> String {
diff --git a/src/github/checks.rs b/src/github/checks.rs
index 34b09fd..4d33217 100644
--- a/src/github/checks.rs
+++ b/src/github/checks.rs
@@ -8,7 +8,7 @@ struct CheckSuite {
 
 #[derive(Deserialize)]
 struct CheckSuites {
-    total_count: u8,
+    total_count: u32,
     check_suites: Vec<CheckSuite>,
 }
 
@@ -36,3 +36,42 @@ pub async fn last_checked_commit() -> Result<Option<String>, reqwest::Error> {
     };
     Ok(sha)
 }
+
+#[derive(Deserialize)]
+struct WorkflowRun {
+    id: u64,
+    workflow_id: u16,
+}
+
+#[derive(Deserialize)]
+struct Runs {
+    total_count: u32,
+    workflow_runs: Vec<WorkflowRun>,
+}
+
+pub async fn last_run_id(id: &u16, branch: &str) -> Result<Option<u64>, reqwest::Error> {
+    let client = reqwest::ClientBuilder::new()
+        .user_agent(USER_AGENT)
+        .build()?;
+
+    let Runs {
+        total_count,
+        workflow_runs,
+    } = client
+        .get(&format!("{}/actions/runs?branch={}", BASE_URL, branch))
+        .header("Accept", "application/vnd.github.antiope-preview+json")
+        .send()
+        .await?
+        .json()
+        .await?;
+
+    let run_id = if total_count == 0 {
+        None
+    } else {
+        workflow_runs
+            .into_iter()
+            .find(|run| run.workflow_id == id.to_owned())
+            .map(|run| run.id)
+    };
+    Ok(run_id)
+}
diff --git a/src/github/mod.rs b/src/github/mod.rs
index c2cde3c..9120120 100644
--- a/src/github/mod.rs
+++ b/src/github/mod.rs
@@ -3,12 +3,14 @@ use serde::Deserialize;
 mod checks;
 pub mod compare;
 
-pub use checks::last_checked_commit;
+pub use checks::{last_checked_commit, last_run_id};
 
 pub const USER_AGENT: &str = concat!(env!("CARGO_PKG_NAME"), "/", env!("CARGO_PKG_VERSION"));
 
 pub const BASE_URL: &str = "https://api.github.com/repos/bs-community/blessing-skin-server";
 
+pub const WORKFLOW_ID: &u16 = &6505;
+
 #[derive(Deserialize)]
 pub struct Commit {
     pub sha: String,
diff --git a/src/main.rs b/src/main.rs
index a25cc7a..57aac5f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -46,8 +46,7 @@ async fn main() -> Result<(), MainError> {
         "diff" | "core" => {
             let base = args.next();
             let head = args.next();
-            let run_id = env::var("GITHUB_RUN_ID").ok();
-            diff::execute(&bot, base, head, run_id)
+            diff::execute(&bot, base, head)
                 .await
                 .map_err(MainError::from)
         }