diff --git a/package.json b/package.json
index 7dedec7cff4d..1bfcba16278b 100644
--- a/package.json
+++ b/package.json
@@ -210,7 +210,7 @@
     "speed-measure-webpack-plugin": "1.3.3",
     "style-loader": "2.0.0",
     "stylus": "0.54.7",
-    "stylus-loader": "4.1.1",
+    "stylus-loader": "4.2.0",
     "symbol-observable": "2.0.3",
     "tar": "^6.0.0",
     "temp": "^0.9.0",
diff --git a/packages/angular_devkit/build_angular/package.json b/packages/angular_devkit/build_angular/package.json
index f1e90d0f0e55..86fc974fa384 100644
--- a/packages/angular_devkit/build_angular/package.json
+++ b/packages/angular_devkit/build_angular/package.json
@@ -64,7 +64,7 @@
     "speed-measure-webpack-plugin": "1.3.3",
     "style-loader": "2.0.0",
     "stylus": "0.54.8",
-    "stylus-loader": "4.1.1",
+    "stylus-loader": "4.2.0",
     "terser": "5.3.8",
     "terser-webpack-plugin": "4.2.3",
     "text-table": "0.2.0",
diff --git a/yarn.lock b/yarn.lock
index c697338ea3c2..119973cc40d8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11594,10 +11594,10 @@ stylehacks@^4.0.0:
     postcss "^7.0.0"
     postcss-selector-parser "^3.0.0"
 
-stylus-loader@4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/stylus-loader/-/stylus-loader-4.1.1.tgz#0e94f5d6274932a2dad054d1a736b32146ac7a99"
-  integrity sha512-Vnm7J/nIs/P6swIrdwJW/dflhsCOiFmb1U3PeQ6phRtg1soPLN4uKnnL7AtGIJDe173elbtYIXVzmCyF493CfA==
+stylus-loader@4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/stylus-loader/-/stylus-loader-4.2.0.tgz#ec4cf3408a52d07e6d3c15ffe1a0e5c2484bacc7"
+  integrity sha512-n2zrq+rwUcK3DMX396XoxUYoQE+2DatqMId9RId79hOEYI7DVzsMKlQHcH7jkezvAD22SIks3YxgDhPUoRZ8ZQ==
   dependencies:
     fast-glob "^3.2.4"
     klona "^2.0.4"