diff --git a/packages/xdl/package.json b/packages/xdl/package.json
index e05f4a3099..bfbff201d9 100644
--- a/packages/xdl/package.json
+++ b/packages/xdl/package.json
@@ -66,7 +66,6 @@
     "md5hex": "1.0.0",
     "minimatch": "3.0.4",
     "mv": "2.1.1",
-    "ncp": "2.0.0",
     "node-forge": "0.10.0",
     "p-map": "3.0.0",
     "p-retry": "4.1.0",
@@ -107,7 +106,6 @@
     "@types/fs-extra": "^9.0.1",
     "@types/getenv": "^0.7.0",
     "@types/hapi__joi": "^17.1.2",
-    "@types/ncp": "^2.0.1",
     "@types/node-forge": "^0.9.7",
     "@types/text-table": "^0.2.1",
     "@types/raven": "^2.5.3",
diff --git a/packages/xdl/src/internal.ts b/packages/xdl/src/internal.ts
index 88e0d78b61..98149bb1aa 100644
--- a/packages/xdl/src/internal.ts
+++ b/packages/xdl/src/internal.ts
@@ -9,7 +9,7 @@
   With this module in place, we can fix these circular dependency problems by
   changing the order in this file.
 */
-export * from './Utils';
+export { Semaphore } from './utils/Semaphore';
 export * as Env from './Env';
 export { default as Config } from './Config';
 export * as Xcode from './Xcode';
diff --git a/packages/xdl/src/Utils.ts b/packages/xdl/src/utils/Semaphore.ts
similarity index 77%
rename from packages/xdl/src/Utils.ts
rename to packages/xdl/src/utils/Semaphore.ts
index 13b3707bba..59ba029dd7 100644
--- a/packages/xdl/src/Utils.ts
+++ b/packages/xdl/src/utils/Semaphore.ts
@@ -1,17 +1,3 @@
-import { ncp } from 'ncp';
-
-export function ncpAsync(source: string, dest: string, options: any = {}) {
-  return new Promise((resolve, reject) => {
-    ncp(source, dest, options, (err: any) => {
-      if (err) {
-        reject(err);
-      } else {
-        resolve();
-      }
-    });
-  });
-}
-
 export class Semaphore {
   queue: ((v: boolean) => void)[] = [];
   available = 1;
diff --git a/yarn.lock b/yarn.lock
index 6d4edd2fb1..0b301812b3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4198,13 +4198,6 @@
   dependencies:
     "@types/minimatch" "*"
 
-"@types/ncp@^2.0.1":
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/@types/ncp/-/ncp-2.0.3.tgz#68429472698a68f2c85a984932e9d8014d5f2ed0"
-  integrity sha512-eZatZMWhPHUHY/1hUUqwGrWzBAE9deYR3L0QJMicpVkBUOrQslhWblw5Ye+rKuzvFG/UQ3jDolMcjhC2WKUQ5w==
-  dependencies:
-    "@types/node" "*"
-
 "@types/next-server@*":
   version "9.0.0"
   resolved "https://registry.yarnpkg.com/@types/next-server/-/next-server-9.0.0.tgz#4884670da2d846c0050a608153a48cd0c6cdbeb2"
@@ -14779,7 +14772,7 @@ natural-compare@^1.4.0:
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
   integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
 
-ncp@2.0.0, ncp@~2.0.0:
+ncp@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ncp/-/ncp-2.0.0.tgz#195a21d6c46e361d2fb1281ba38b91e9df7bdbb3"
   integrity sha1-GVoh1sRuNh0vsSgbo4uR6d9727M=