diff --git a/packages/vant-cli/package.json b/packages/vant-cli/package.json
index e0435146d..4ef9e774a 100644
--- a/packages/vant-cli/package.json
+++ b/packages/vant-cli/package.json
@@ -76,7 +76,7 @@
     "jest": "^26.6.3",
     "jest-canvas-mock": "^2.3.0",
     "jest-serializer-html": "^7.0.0",
-    "less": "^3.12.2",
+    "less": "^4.0.0",
     "less-loader": "^7.1.0",
     "lint-staged": "^10.5.1",
     "lodash": "^4.17.20",
diff --git a/packages/vant-cli/yarn.lock b/packages/vant-cli/yarn.lock
index 978ab3810..dbbb8778b 100644
--- a/packages/vant-cli/yarn.lock
+++ b/packages/vant-cli/yarn.lock
@@ -3380,6 +3380,13 @@ cookie@0.4.0:
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.0.tgz#beb437e7022b3b6d49019d088665303ebe9c14ba"
   integrity sha512-+Hp8fLp57wnUSt0tY0tHEXh4voZRDnoIrZPqlo3DPiI4y9lwg/jqx+1Om94/W6ZaPDOUbnjOt/99w66zk+l1Xg==
 
+copy-anything@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.npm.taobao.org/copy-anything/download/copy-anything-2.0.1.tgz#2afbce6da684bdfcbec93752fa762819cb480d9a"
+  integrity sha1-KvvObaaEvfy+yTdS+nYoGctIDZo=
+  dependencies:
+    is-what "^3.7.1"
+
 copy-descriptor@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
@@ -5872,6 +5879,11 @@ is-utf8@^0.2.0:
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
   integrity sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=
 
+is-what@^3.7.1:
+  version "3.12.0"
+  resolved "https://registry.npm.taobao.org/is-what/download/is-what-3.12.0.tgz?cache=0&sync_timestamp=1605079638099&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fis-what%2Fdownload%2Fis-what-3.12.0.tgz#f4405ce4bd6dd420d3ced51a026fb90e03705e55"
+  integrity sha1-9EBc5L1t1CDTztUaAm+5DgNwXlU=
+
 is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
@@ -6574,11 +6586,13 @@ less-loader@^7.1.0:
     loader-utils "^2.0.0"
     schema-utils "^3.0.0"
 
-less@^3.12.2:
-  version "3.12.2"
-  resolved "https://registry.npm.taobao.org/less/download/less-3.12.2.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fless%2Fdownload%2Fless-3.12.2.tgz#157e6dd32a68869df8859314ad38e70211af3ab4"
-  integrity sha1-FX5t0ypohp34hZMUrTjnAhGvOrQ=
+less@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.npm.taobao.org/less/download/less-4.0.0.tgz#d238cc25576c1f722794dbca4ac82e5e3c7e9e65"
+  integrity sha1-0jjMJVdsH3InlNvKSsguXjx+nmU=
   dependencies:
+    copy-anything "^2.0.1"
+    parse-node-version "^1.0.1"
     tslib "^1.10.0"
   optionalDependencies:
     errno "^0.1.1"
@@ -7752,6 +7766,11 @@ parse-json@^4.0.0:
     error-ex "^1.3.1"
     json-parse-better-errors "^1.0.1"
 
+parse-node-version@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.npm.taobao.org/parse-node-version/download/parse-node-version-1.0.1.tgz#e2b5dbede00e7fa9bc363607f53327e8b073189b"
+  integrity sha1-4rXb7eAOf6m8NjYH9TMn6LBzGJs=
+
 parse-path@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/parse-path/-/parse-path-4.0.1.tgz#0ec769704949778cb3b8eda5e994c32073a1adff"