diff --git a/packages/next-css/package.json b/packages/next-css/package.json
index f6732173..fdbfa21e 100644
--- a/packages/next-css/package.json
+++ b/packages/next-css/package.json
@@ -6,7 +6,7 @@
   "repository": "zeit/next-plugins",
   "dependencies": {
     "css-loader": "^2.1.0",
-    "extract-css-chunks-webpack-plugin": "^3.3.2",
+    "extract-css-chunks-webpack-plugin": "^4.5.2",
     "find-up": "^3.0.0",
     "ignore-loader": "~0.1.2",
     "optimize-css-assets-webpack-plugin": "^5.0.1",
diff --git a/yarn.lock b/yarn.lock
index 97c2fbac..2194e586 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3102,14 +3102,13 @@ extglob@^2.0.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
-extract-css-chunks-webpack-plugin@^3.3.2:
-  version "3.3.3"
-  resolved "https://registry.yarnpkg.com/extract-css-chunks-webpack-plugin/-/extract-css-chunks-webpack-plugin-3.3.3.tgz#d550be32b93dad5d290e9d979d37dd317bdaec9b"
-  integrity sha512-4DYo3jna9ov81rdKtE1U2cirb3ERoWhHldzRxZWx3Q5i5Dm6U+mmfon7PmaKDuh6+xySVOqtlXrZyJY2V4tc+g==
+extract-css-chunks-webpack-plugin@^4.5.2:
+  version "4.5.2"
+  resolved "https://registry.yarnpkg.com/extract-css-chunks-webpack-plugin/-/extract-css-chunks-webpack-plugin-4.5.2.tgz#41e4be8bfb3a2ac9195b9eb9b4bb816d03228b00"
+  integrity sha512-UeDq6pUoroOOeY3RyxVb21SNxWTx2MRL9fRs8HCsw2aCLkvKImbybGLXxeBQjT9GlDWfzMH0gnclS786aT+zuA==
   dependencies:
     loader-utils "^1.1.0"
-    lodash "^4.17.11"
-    normalize-url "^3.3.0"
+    normalize-url "1.9.1"
     schema-utils "^1.0.0"
     webpack-sources "^1.1.0"
 
@@ -4953,11 +4952,6 @@ lodash@^4.0.0, lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5,
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
   integrity sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==
 
-lodash@^4.17.11:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
-  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
-
 log-symbols@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
@@ -5527,7 +5521,17 @@ normalize-path@^3.0.0:
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-3.0.0.tgz#0dcd69ff23a1c9b11fd0978316644a0388216a65"
   integrity sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==
 
-normalize-url@^3.0.0, normalize-url@^3.3.0:
+normalize-url@1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-1.9.1.tgz#2cc0d66b31ea23036458436e3620d85954c66c3c"
+  integrity sha1-LMDWazHqIwNkWENuNiDYWVTGbDw=
+  dependencies:
+    object-assign "^4.0.1"
+    prepend-http "^1.0.0"
+    query-string "^4.1.0"
+    sort-keys "^1.0.0"
+
+normalize-url@^3.0.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-3.3.0.tgz#b2e1c4dc4f7c6d57743df733a4f5978d18650559"
   integrity sha512-U+JJi7duF1o+u2pynbp2zXDW2/PADgC30f0GsHZtRh+HOcXHnw137TrNlyxxRvWW5fjKd3bcLHPxofWuCjaeZg==
@@ -6444,7 +6448,7 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
 
-prepend-http@^1.0.1:
+prepend-http@^1.0.0, prepend-http@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
   integrity sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw=
@@ -6590,6 +6594,14 @@ qs@~6.4.0:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
   integrity sha1-E+JtKK1rD/qpExLNO/cI7TUecjM=
 
+query-string@^4.1.0:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/query-string/-/query-string-4.3.4.tgz#bbb693b9ca915c232515b228b1a02b609043dbeb"
+  integrity sha1-u7aTucqRXCMlFbIosaArYJBD2+s=
+  dependencies:
+    object-assign "^4.1.0"
+    strict-uri-encode "^1.0.0"
+
 querystring-es3@^0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
@@ -7309,7 +7321,7 @@ sntp@1.x.x:
   dependencies:
     hoek "2.x.x"
 
-sort-keys@^1.1.2:
+sort-keys@^1.0.0, sort-keys@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/sort-keys/-/sort-keys-1.1.2.tgz#441b6d4d346798f1b4e49e8920adfba0e543f9ad"
   integrity sha1-RBttTTRnmPG05J6JIK37oOVD+a0=
@@ -7525,6 +7537,11 @@ stream-to-observable@^0.2.0:
   dependencies:
     any-observable "^0.2.0"
 
+strict-uri-encode@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
+  integrity sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM=
+
 string-width@^1.0.1, string-width@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"