diff --git a/.github/workflows/cargo.yml b/.github/workflows/cargo.yml
index c85f4bb7c19..9d265f9e211 100644
--- a/.github/workflows/cargo.yml
+++ b/.github/workflows/cargo.yml
@@ -13,6 +13,7 @@ on: [push, pull_request]
 #      - 'trying'
 
 env:
+  CI: 1
   CARGO_INCREMENTAL: 0
   RUST_LOG: "debug"
 
@@ -80,7 +81,7 @@ jobs:
             ~/.cargo/
             target
             Cargo.lock
-          key: ${{ runner.os }}-cargo-v3
+          key: ${{ runner.os }}-cargo-v4
       # Ensure that all components are compilable.
       - name: Run cargo check for all targets
         run: cargo check --color always --all --all-targets
@@ -204,7 +205,7 @@ jobs:
             ~/.cargo/
             target
             Cargo.lock
-          key: ${{ runner.os }}-cargo-v3
+          key: ${{ runner.os }}-cargo-v4
 
       - name: Run cargo test
         run: |
diff --git a/ecmascript/parser/Cargo.toml b/ecmascript/parser/Cargo.toml
index 89d6d25e3c4..868736024df 100644
--- a/ecmascript/parser/Cargo.toml
+++ b/ecmascript/parser/Cargo.toml
@@ -7,7 +7,7 @@ include = ["Cargo.toml", "src/**/*.rs", "examples/**/*.rs"]
 license = "Apache-2.0/MIT"
 name = "swc_ecma_parser"
 repository = "https://github.com/swc-project/swc.git"
-version = "0.57.1"
+version = "0.57.2"
 
 [features]
 default = []
diff --git a/ecmascript/parser/src/parser/class_and_fn.rs b/ecmascript/parser/src/parser/class_and_fn.rs
index 1675860fa73..7aacbc857a8 100644
--- a/ecmascript/parser/src/parser/class_and_fn.rs
+++ b/ecmascript/parser/src/parser/class_and_fn.rs
@@ -360,8 +360,6 @@ impl<'a, I: Tokens> Parser<I> {
                     false,
                     false,
                 );
-            } else if accessibility.is_none() {
-                self.emit_err(self.input.prev_span(), SyntaxError::TS1031);
             }
         }
 
diff --git a/ecmascript/parser/tests/issue-1751/case1/input.ts b/ecmascript/parser/tests/issue-1751/case1/input.ts
new file mode 100644
index 00000000000..58d9792d751
--- /dev/null
+++ b/ecmascript/parser/tests/issue-1751/case1/input.ts
@@ -0,0 +1,3 @@
+class Foo {
+    declare a: string
+}
\ No newline at end of file
diff --git a/ecmascript/parser/tests/typescript-errors/class/declare-private-name/input.ts.stderr b/ecmascript/parser/tests/typescript-errors/class/declare-private-name/input.ts.stderr
index be3782eecb2..1bbcd0e8879 100644
--- a/ecmascript/parser/tests/typescript-errors/class/declare-private-name/input.ts.stderr
+++ b/ecmascript/parser/tests/typescript-errors/class/declare-private-name/input.ts.stderr
@@ -4,9 +4,3 @@ error: 'declare' modifier cannot be used with a private identifier
 2 |     declare #name;
   |             ^^^^^
 
-error: `declare` modifier cannot appear on a class element
- --> $DIR/tests/typescript-errors/class/declare-private-name/input.ts:2:5
-  |
-2 |     declare #name;
-  |     ^^^^^^^
-
diff --git a/ecmascript/parser/tests/typescript-errors/class/override-with-declare/input.ts.stderr b/ecmascript/parser/tests/typescript-errors/class/override-with-declare/input.ts.stderr
index 5755ee7fe08..1f229ff09ae 100644
--- a/ecmascript/parser/tests/typescript-errors/class/override-with-declare/input.ts.stderr
+++ b/ecmascript/parser/tests/typescript-errors/class/override-with-declare/input.ts.stderr
@@ -1,9 +1,3 @@
-error: `declare` modifier cannot appear on a class element
- --> $DIR/tests/typescript-errors/class/override-with-declare/input.ts:2:3
-  |
-2 |   declare override m1(): any
-  |   ^^^^^^^
-
 error: 'override' modifier cannot be used with 'declare' modifier.
  --> $DIR/tests/typescript-errors/class/override-with-declare/input.ts:2:11
   |
diff --git a/ecmascript/transforms/package.json b/ecmascript/transforms/package.json
index 42d2835fce0..173c23cf56f 100644
--- a/ecmascript/transforms/package.json
+++ b/ecmascript/transforms/package.json
@@ -1,6 +1,7 @@
 {
   "devDependencies": {
-    "jest": "^23.6.0",
+    "@types/jest": "^26.0.23",
+    "jest": "^27.0.1",
     "regenerator-runtime": "^0.11.0"
   }
 }
diff --git a/ecmascript/transforms/testing/src/lib.rs b/ecmascript/transforms/testing/src/lib.rs
index 91565e6fde0..c6babb784ba 100644
--- a/ecmascript/transforms/testing/src/lib.rs
+++ b/ecmascript/transforms/testing/src/lib.rs
@@ -391,6 +391,11 @@ where
             Command::new(&jest_path)
         };
 
+        // I hate windows.
+        if cfg!(target_os = "windows") && env::var("CI").is_ok() {
+            base_cmd.arg("--passWithNoTests");
+        }
+
         let status = base_cmd
             .args(&["--testMatch", &format!("{}", path.display())])
             .current_dir(root)
diff --git a/node-swc/src/index.ts b/node-swc/src/index.ts
index 843a8241f8b..c84c629b444 100644
--- a/node-swc/src/index.ts
+++ b/node-swc/src/index.ts
@@ -10,8 +10,6 @@ import {
 export * from "./types";
 import { BundleInput, compileBundleOptions } from "./spack";
 import { loadBinding } from "@node-rs/helper";
-import * as babel from '@babel/types';
-import { BabelifyOptions } from './babel';
 
 const bindings = loadBinding(__dirname, "swc", "@swc/core")
 
diff --git a/node-swc/src/types.ts b/node-swc/src/types.ts
index 4a4168e3cd4..f53bebff03b 100644
--- a/node-swc/src/types.ts
+++ b/node-swc/src/types.ts
@@ -270,6 +270,11 @@ export interface JscConfig {
    * Defaults to `es3` (which enableds **all** pass).
    */
   target?: JscTarget;
+
+  /**
+   * Keep class names.
+   */
+  keepClassNames?: boolean
 }
 
 export type JscTarget =
diff --git a/package.json b/package.json
index 2ee0da0c480..715bfb050fb 100644
--- a/package.json
+++ b/package.json
@@ -67,12 +67,12 @@
         "@napi-rs/cli": "^1.0.4",
         "@swc/helpers": "^0.2.10",
         "@types/browserslist": "^4.15.0",
-        "@types/jest": "^25.2.3",
+        "@types/jest": "^26.0.23",
         "@types/node": "^14.14.41",
         "axios": "^0.21.1",
         "babel-plugin-transform-node-env-inline": "^0.4.3",
         "browserslist": "^4.16.5",
-        "jest": "^23.6.0",
+        "jest": "^27.0.1",
         "lodash": "^4.17.21",
         "progress": "^2.0.3",
         "source-map": "^0.7.3",