diff --git a/README.md b/README.md
index cc7622a7..e3b77c68 100644
--- a/README.md
+++ b/README.md
@@ -125,7 +125,7 @@ interactive elements, using React/Vue/Svelte lib or vanilla JS.
     ```sh
     $ npm run size
 
-      Package size: 30.08 KB with all dependencies, minified and gzipped
+      Package size: 30.08 kB with all dependencies, minified and gzipped
     ```
 
 4. Now, let’s set the limit. Add 25% to the current total time and use that as
@@ -134,7 +134,7 @@ interactive elements, using React/Vue/Svelte lib or vanilla JS.
     ```diff
       "size-limit": [
         {
-    +     "limit": "35 KB",
+    +     "limit": "35 kB",
           "path": "dist/app-*.js"
         }
       ],
@@ -159,10 +159,10 @@ interactive elements, using React/Vue/Svelte lib or vanilla JS.
 
 ### JS Application and Time-based Limit
 
-File size limit (in KB) is not the best way to describe your JS application
+File size limit (in kB) is not the best way to describe your JS application
 cost for developers. Developers will compare the size of the JS bundle
-with the size of images. But browsers need much more time to parse 100 KB
-of JS than 100 KB of an image since JS compilers are very complex.
+with the size of images. But browsers need much more time to parse 100 kB
+of JS than 100 kB of an image since JS compilers are very complex.
 
 This is why Size Limit support time-based limit. It runs headless Chrome
 to track the time a browser takes to compile and execute your JS.
@@ -195,7 +195,7 @@ to track the time a browser takes to compile and execute your JS.
     ```sh
     $ npm run size
 
-      Package size: 30.08 KB with all dependencies, minified and gzipped
+      Package size: 30.08 kB with all dependencies, minified and gzipped
       Loading time: 602 ms   on slow 3G
       Running time: 214 ms   on Snapdragon 410
       Total time:   815 ms
@@ -232,10 +232,10 @@ to track the time a browser takes to compile and execute your JS.
 
 ### Big Libraries
 
-JS libraries > 10 KB in size.
+JS libraries > 10 kB in size.
 
 This preset includes headless Chrome, and will measure your lib’s execution
-time. You likely don’t need this overhead for a small 2 KB lib, but for larger
+time. You likely don’t need this overhead for a small 2 kB lib, but for larger
 ones the execution time is a more accurate and understandable metric that
 the size in bytes. Library like [React] is a good example for this preset.
 
@@ -279,7 +279,7 @@ the size in bytes. Library like [React] is a good example for this preset.
     ```sh
     $ npm run size
 
-      Package size: 30.08 KB with all dependencies, minified and gzipped
+      Package size: 30.08 kB with all dependencies, minified and gzipped
       Loading time: 602 ms   on slow 3G
       Running time: 214 ms   on Snapdragon 410
       Total time:   815 ms
@@ -318,7 +318,7 @@ the size in bytes. Library like [React] is a good example for this preset.
       Short project description
 
       * **Fast.** 10% faster than competitor.
-    + * **Small.** 15 KB (minified and gzipped).
+    + * **Small.** 15 kB (minified and gzipped).
     +   [Size Limit](https://github.com/ai/size-limit) controls the size.
     ```
 
@@ -327,7 +327,7 @@ the size in bytes. Library like [React] is a good example for this preset.
 
 ### Small Libraries
 
-JS libraries < 10 KB in size.
+JS libraries < 10 kB in size.
 
 This preset will only measure the size, without the execution time, so it’s
 suitable for small libraries. If your library is larger, you likely want
@@ -377,7 +377,7 @@ for this preset.
     ```diff
      "size-limit": [
         {
-    +     "limit": "9 KB",
+    +     "limit": "9 kB",
           "path": "index.js"
         }
      ],
@@ -492,7 +492,7 @@ Each section in the config can have these options:
   to test multiple files.
 * **limit**: size or time limit for files from the `path` option. It should be
   a string with a number and unit, separated by a space.
-  Format: `100 B`, `10 KB`, `500 ms`, `1 s`.
+  Format: `100 B`, `10 kB`, `500 ms`, `1 s`.
 * **name**: the name of the current section. It will only be useful
   if you have multiple sections.
 * **entry**: when using a custom webpack config, a webpack entry could be given.
@@ -508,7 +508,7 @@ Each section in the config can have these options:
 
 If you use Size Limit to track the size of CSS files, make sure to set
 `webpack: false`. Otherwise, you will get wrong numbers, because webpack
-inserts `style-loader` runtime (≈2 KB) into the bundle.
+inserts `style-loader` runtime (≈2 kB) into the bundle.
 
 [pattern]: https://github.com/sindresorhus/globby#globbing-patterns
 
diff --git a/package.json b/package.json
index fba35cc5..4aa19514 100644
--- a/package.json
+++ b/package.json
@@ -129,7 +129,7 @@
       "CI",
       "gzip",
       "js",
-      "KB",
+      "kB",
       "nanoid",
       "npm",
       "Storeon",
diff --git a/packages/preset-big-lib/README.md b/packages/preset-big-lib/README.md
index 4f1b6c2c..fcba3926 100644
--- a/packages/preset-big-lib/README.md
+++ b/packages/preset-big-lib/README.md
@@ -1,6 +1,6 @@
 # Size Limit Preset for Big Libraries
 
-The preset for [Size Limit] for libraries > 10 KB. It uses
+The preset for [Size Limit] for libraries > 10 kB. It uses
 webpack, file and time plugins to track the time of JS download and execution
 of library and all dependencies.
 
diff --git a/packages/preset-small-lib/README.md b/packages/preset-small-lib/README.md
index 631a11d6..e9327e73 100644
--- a/packages/preset-small-lib/README.md
+++ b/packages/preset-small-lib/README.md
@@ -1,6 +1,6 @@
 # Size Limit Preset for Small Libraries
 
-The preset for [Size Limit] for libraries < 10 KB. It uses
+The preset for [Size Limit] for libraries < 10 kB. It uses
 webpack and file plugins to track the size of all files and dependencies.
 
 See Size Limit docs for more details.
diff --git a/packages/size-limit/create-help.js b/packages/size-limit/create-help.js
index c72cbc8b..641cef18 100644
--- a/packages/size-limit/create-help.js
+++ b/packages/size-limit/create-help.js
@@ -81,7 +81,7 @@ module.exports = process => {
       'For frameworks, components and big libraries',
       '  ' + y(add + '@size-limit/preset-big-lib'),
       '',
-      'For small (< 10 KB) libraries',
+      'For small (< 10 kB) libraries',
       '  ' + y(add + '@size-limit/preset-small-lib'),
       '',
       'Check out docs for more complicated cases',
diff --git a/packages/size-limit/create-reporter.js b/packages/size-limit/create-reporter.js
index 012d0d2b..ee9f7af6 100644
--- a/packages/size-limit/create-reporter.js
+++ b/packages/size-limit/create-reporter.js
@@ -9,7 +9,7 @@ let {
   yellow
 } = require('colorette')
 let { join } = require('path')
-let bytes = require('bytes')
+let bytes = require('bytes-iec')
 
 function createJsonReporter(process) {
   function print(data) {
diff --git a/packages/size-limit/get-config.js b/packages/size-limit/get-config.js
index 4493f92e..a328a8d8 100644
--- a/packages/size-limit/get-config.js
+++ b/packages/size-limit/get-config.js
@@ -1,7 +1,7 @@
 let { isAbsolute, dirname, join, relative } = require('path')
 let { lilconfig } = require('lilconfig')
 let globby = require('globby')
-let bytes = require('bytes')
+let bytes = require('bytes-iec')
 
 let SizeLimitError = require('./size-limit-error')
 
diff --git a/packages/size-limit/package.json b/packages/size-limit/package.json
index 59ca36e3..4e16ef3d 100644
--- a/packages/size-limit/package.json
+++ b/packages/size-limit/package.json
@@ -18,7 +18,7 @@
     "node": "^10 || ^11 || ^12 || >=13.7"
   },
   "dependencies": {
-    "bytes": "^3.1.0",
+    "bytes-iec": "^3.1.1",
     "chokidar": "^3.5.1",
     "ci-job-number": "^1.2.2",
     "colorette": "^1.2.2",
diff --git a/packages/size-limit/size-limit-error.js b/packages/size-limit/size-limit-error.js
index 9aee7912..ba9f992d 100644
--- a/packages/size-limit/size-limit-error.js
+++ b/packages/size-limit/size-limit-error.js
@@ -57,7 +57,7 @@ class SizeLimitError extends Error {
         '  "size-limit": [\n' +
         '    {\n' +
         '      "path": "dist/bundle.js",\n' +
-        '      "limit": "10 KB"\n' +
+        '      "limit": "10 kB"\n' +
         '    }\n' +
         '  ]\n'
     }
diff --git a/packages/size-limit/test/__snapshots__/create-reporter.test.js.snap b/packages/size-limit/test/__snapshots__/create-reporter.test.js.snap
index 3f9c82bf..e60f1657 100644
--- a/packages/size-limit/test/__snapshots__/create-reporter.test.js.snap
+++ b/packages/size-limit/test/__snapshots__/create-reporter.test.js.snap
@@ -3,12 +3,12 @@
 exports[`highlight passed results with --highlight-less flag 1`] = `
 "  
   ok
-  Size limit: 100 KB
-  Size:       100 KB gzipped
+  Size limit: 102.4 kB
+  Size:       102.4 kB gzipped
   
   good
-  Size limit: 100 KB
-  Size:       95 KB  gzipped
+  Size limit: 102.4 kB
+  Size:       97.28 kB gzipped
   
   fail
   Package size limit has exceeded by 1 B
@@ -28,8 +28,8 @@ exports[`only renders failed results with --hide-passed flag 1`] = `
   
   big fail
   Package size limit has exceeded by 100 B
-  Size limit: 100 KB
-  Size:       100.1 KB gzipped
+  Size limit: 102.4 kB
+  Size:       102.5 kB gzipped
   
   Try to reduce size or increase limit in \\"size-limit\\" section of package.json
 "
@@ -62,7 +62,7 @@ exports[`renders config-less result 1`] = `
 "  
   Total time limit has exceeded
   Time limit:   500 ms
-  Size:         1000 B
+  Size:         1 kB
   Loading time: 200 ms on slow 3G
   Running time: 300 ms on Snapdragon 410
   Total time:   500 ms
@@ -74,8 +74,8 @@ exports[`renders config-less result 1`] = `
 exports[`renders failed results 1`] = `
 "  
   ok
-  Size limit: 100 KB
-  Size:       100 KB gzipped
+  Size limit: 102.4 kB
+  Size:       102.4 kB gzipped
   
   small fail
   Package size limit has exceeded by 1 B
@@ -84,8 +84,8 @@ exports[`renders failed results 1`] = `
   
   big fail
   Package size limit has exceeded by 100 B
-  Size limit: 100 KB
-  Size:       100.1 KB gzipped
+  Size limit: 102.4 kB
+  Size:       102.5 kB gzipped
   
   Try to reduce size or increase limit in \\"size-limit\\" section of package.json
 "
@@ -100,8 +100,8 @@ exports[`renders list of failed and success checks in silent mode 1`] = `
   
   big fail
   Package size limit has exceeded by 100 B
-  Size limit: 100 KB
-  Size:       100.1 KB with all dependencies, minified and gzipped
+  Size limit: 102.4 kB
+  Size:       102.5 kB with all dependencies, minified and gzipped
   
 "
 `;
@@ -115,8 +115,8 @@ exports[`renders list of failed checks in silent mode 1`] = `
   
   big fail
   Package size limit has exceeded by 100 B
-  Size limit: 100 KB
-  Size:       100.1 KB with all dependencies, minified and gzipped
+  Size limit: 102.4 kB
+  Size:       102.5 kB with all dependencies, minified and gzipped
   
 "
 `;
@@ -143,17 +143,17 @@ exports[`renders results 1`] = `
   Total time:   600 ms
   
   size
-  Size limit:   100 KB
-  Size:         100 KB with all dependencies, minified and gzipped
-  Loading time: 1 s    on slow 3G
-  Running time: 2 s    on Snapdragon 410
+  Size limit:   102.4 kB
+  Size:         102.4 kB with all dependencies, minified and gzipped
+  Loading time: 1 s      on slow 3G
+  Running time: 2 s      on Snapdragon 410
   Total time:   3 s
   
   time
   Time limit:   4 s
-  Size:         100 KB with all dependencies and minified
-  Loading time: 1 s    on slow 3G
-  Running time: 2 s    on Snapdragon 410
+  Size:         102.4 kB with all dependencies and minified
+  Loading time: 1 s      on slow 3G
+  Running time: 2 s      on Snapdragon 410
   Total time:   3 s
   
 "
diff --git a/packages/size-limit/test/__snapshots__/run.test.js.snap b/packages/size-limit/test/__snapshots__/run.test.js.snap
index c6dbab09..c42f5337 100644
--- a/packages/size-limit/test/__snapshots__/run.test.js.snap
+++ b/packages/size-limit/test/__snapshots__/run.test.js.snap
@@ -2,14 +2,14 @@
 
 exports[`run allows to use peer dependencies in import 1`] = `
 "  
-  Size: 2.44 KB with all dependencies, minified and gzipped
+  Size: 2.5 kB with all dependencies, minified and gzipped
   
 "
 `;
 
 exports[`run find plugins in parent package.json 1`] = `
 "  
-  Size limit: 1 KB
+  Size limit: 1 kB
   Size:       20 B gzipped
   
 "
@@ -33,7 +33,7 @@ exports[`run returns zero bytes for empty file without gzip 1`] = `
 
 exports[`run shows brotli text when brotli and gzip in config 1`] = `
 "  
-  Size limit:   1 KB
+  Size limit:   1 kB
   Size:         -53 B with all dependencies, minified and brotli
   Loading time: 10 ms on slow 3G
   Running time: 1 s   on Snapdragon 410
@@ -44,7 +44,7 @@ exports[`run shows brotli text when brotli and gzip in config 1`] = `
 
 exports[`run shows brotli text when only brotli in config 1`] = `
 "  
-  Size limit:   1 KB
+  Size limit:   1 kB
   Size:         -53 B with all dependencies, minified and brotli
   Loading time: 10 ms on slow 3G
   Running time: 1 s   on Snapdragon 410
@@ -275,7 +275,7 @@ For application, where you send JS bundle directly to users
 For frameworks, components and big libraries
   npm install --save-dev @size-limit/preset-big-lib
 
-For small (< 10 KB) libraries
+For small (< 10 kB) libraries
   npm install --save-dev @size-limit/preset-small-lib
 
 Check out docs for more complicated cases
@@ -292,7 +292,7 @@ For application, where you send JS bundle directly to users
 For frameworks, components and big libraries
   npm install --save-dev @size-limit/preset-big-lib
 
-For small (< 10 KB) libraries
+For small (< 10 kB) libraries
   npm install --save-dev @size-limit/preset-small-lib
 
 Check out docs for more complicated cases
@@ -311,7 +311,7 @@ For application, where you send JS bundle directly to users
 For frameworks, components and big libraries
   yarn add --dev @size-limit/preset-big-lib
 
-For small (< 10 KB) libraries
+For small (< 10 kB) libraries
   yarn add --dev @size-limit/preset-small-lib
 
 Check out docs for more complicated cases
@@ -388,7 +388,7 @@ exports[`run throws on empty config 1`] = `
   \\"size-limit\\": [
     {
       \\"path\\": \\"dist/bundle.js\\",
-      \\"limit\\": \\"10 KB\\"
+      \\"limit\\": \\"10 kB\\"
     }
   ]
 "
@@ -405,7 +405,7 @@ exports[`run throws on no config 1`] = `
   \\"size-limit\\": [
     {
       \\"path\\": \\"dist/bundle.js\\",
-      \\"limit\\": \\"10 KB\\"
+      \\"limit\\": \\"10 kB\\"
     }
   ]
 "
@@ -417,7 +417,7 @@ exports[`run throws on non-array config 1`] = `
   \\"size-limit\\": [
     {
       \\"path\\": \\"dist/bundle.js\\",
-      \\"limit\\": \\"10 KB\\"
+      \\"limit\\": \\"10 kB\\"
     }
   ]
 "
@@ -429,7 +429,7 @@ exports[`run throws on non-object check 1`] = `
   \\"size-limit\\": [
     {
       \\"path\\": \\"dist/bundle.js\\",
-      \\"limit\\": \\"10 KB\\"
+      \\"limit\\": \\"10 kB\\"
     }
   ]
 "
@@ -446,7 +446,7 @@ exports[`run throws on non-string path 1`] = `
   \\"size-limit\\": [
     {
       \\"path\\": \\"dist/bundle.js\\",
-      \\"limit\\": \\"10 KB\\"
+      \\"limit\\": \\"10 kB\\"
     }
   ]
 "
diff --git a/packages/size-limit/test/create-reporter.test.js b/packages/size-limit/test/create-reporter.test.js
index 13a39cef..3f121cd4 100644
--- a/packages/size-limit/test/create-reporter.test.js
+++ b/packages/size-limit/test/create-reporter.test.js
@@ -226,7 +226,7 @@ it('highlight passed results with --highlight-less flag', () => {
         },
         {
           name: 'good',
-          size: 97280, // 5 KB less
+          size: 97280, // 5 KiB less
           sizeLimit: 102400,
           passed: true
         },
diff --git a/packages/size-limit/test/fixtures/brotli-with-gzip/package.json b/packages/size-limit/test/fixtures/brotli-with-gzip/package.json
index dd02a751..c64772f5 100644
--- a/packages/size-limit/test/fixtures/brotli-with-gzip/package.json
+++ b/packages/size-limit/test/fixtures/brotli-with-gzip/package.json
@@ -8,7 +8,7 @@
   "size-limit": [
     {
       "path": "index.js",
-      "limit": "1 KB",
+      "limit": "1 kB",
       "brotli": true,
       "gzip": true
     }
diff --git a/packages/size-limit/test/fixtures/brotli-without-webpack/package.json b/packages/size-limit/test/fixtures/brotli-without-webpack/package.json
index 0f143e69..1f3e0f59 100644
--- a/packages/size-limit/test/fixtures/brotli-without-webpack/package.json
+++ b/packages/size-limit/test/fixtures/brotli-without-webpack/package.json
@@ -8,7 +8,7 @@
   "size-limit": [
     {
       "path": "index.js",
-      "limit": "1 KB",
+      "limit": "1 kB",
       "brotli": true
     }
   ]
diff --git a/packages/size-limit/test/fixtures/brotli/package.json b/packages/size-limit/test/fixtures/brotli/package.json
index 9de77c4c..33732e17 100644
--- a/packages/size-limit/test/fixtures/brotli/package.json
+++ b/packages/size-limit/test/fixtures/brotli/package.json
@@ -8,7 +8,7 @@
   "size-limit": [
     {
       "path": "index.js",
-      "limit": "1 KB",
+      "limit": "1 kB",
       "brotli": true
     }
   ]
diff --git a/packages/size-limit/test/fixtures/file-not-found-json-config/.size-limit.json b/packages/size-limit/test/fixtures/file-not-found-json-config/.size-limit.json
index d5d77621..73f2c2fa 100644
--- a/packages/size-limit/test/fixtures/file-not-found-json-config/.size-limit.json
+++ b/packages/size-limit/test/fixtures/file-not-found-json-config/.size-limit.json
@@ -1,6 +1,6 @@
 [
   {
     "path": "folder/index.js",
-    "limit": "100 KB"
+    "limit": "100 kB"
   }
 ]
diff --git a/packages/size-limit/test/fixtures/file-not-found/package.json b/packages/size-limit/test/fixtures/file-not-found/package.json
index 59e063e7..a0a88916 100644
--- a/packages/size-limit/test/fixtures/file-not-found/package.json
+++ b/packages/size-limit/test/fixtures/file-not-found/package.json
@@ -7,7 +7,7 @@
   "size-limit": [
     {
       "path": "folder/index.js",
-      "limit": "20 KB"
+      "limit": "20 kB"
     }
   ]
 }
diff --git a/packages/size-limit/test/fixtures/globby/package.json b/packages/size-limit/test/fixtures/globby/package.json
index 24fc1126..c06d10c2 100644
--- a/packages/size-limit/test/fixtures/globby/package.json
+++ b/packages/size-limit/test/fixtures/globby/package.json
@@ -11,7 +11,7 @@
       "path": [
         "a*.js"
       ],
-      "limit": "1 KB"
+      "limit": "1 kB"
     },
     {
       "name": "b"
diff --git a/packages/size-limit/test/fixtures/max-listeners/package.json b/packages/size-limit/test/fixtures/max-listeners/package.json
index 565fb5d9..fc95c3a4 100644
--- a/packages/size-limit/test/fixtures/max-listeners/package.json
+++ b/packages/size-limit/test/fixtures/max-listeners/package.json
@@ -7,15 +7,15 @@
   "size-limit": [
     {
       "path": "index.js",
-      "limit": "1 KB"
+      "limit": "1 kB"
     },
     {
       "path": "lib.js",
-      "limit": "1 KB"
+      "limit": "1 kB"
     },
     {
       "path": "lib2.js",
-      "limit": "1 KB"
+      "limit": "1 kB"
     }
   ]
 }
diff --git a/packages/size-limit/test/fixtures/nested/package/package.json b/packages/size-limit/test/fixtures/nested/package/package.json
index ca28cb27..470be09b 100644
--- a/packages/size-limit/test/fixtures/nested/package/package.json
+++ b/packages/size-limit/test/fixtures/nested/package/package.json
@@ -4,7 +4,7 @@
   "size-limit": [
     {
       "name": "index",
-      "limit": "1 KB"
+      "limit": "1 kB"
     }
   ]
 }
diff --git a/packages/size-limit/test/fixtures/npm-with-config-without-dev/package.json b/packages/size-limit/test/fixtures/npm-with-config-without-dev/package.json
index d4c89939..7441f429 100644
--- a/packages/size-limit/test/fixtures/npm-with-config-without-dev/package.json
+++ b/packages/size-limit/test/fixtures/npm-with-config-without-dev/package.json
@@ -5,7 +5,7 @@
   "size-limit": [
     {
       "path": "index.js",
-      "limit": "1 KB",
+      "limit": "1 kB",
       "running": false
     }
   ]
diff --git a/packages/size-limit/test/fixtures/simple/package.json b/packages/size-limit/test/fixtures/simple/package.json
index 8a36bf4d..859d0e71 100644
--- a/packages/size-limit/test/fixtures/simple/package.json
+++ b/packages/size-limit/test/fixtures/simple/package.json
@@ -8,7 +8,7 @@
   "size-limit": [
     {
       "name": "index",
-      "limit": "1 KB"
+      "limit": "1 kB"
     }
   ]
 }
diff --git a/packages/size-limit/test/fixtures/warn/package.json b/packages/size-limit/test/fixtures/warn/package.json
index 8a36bf4d..859d0e71 100644
--- a/packages/size-limit/test/fixtures/warn/package.json
+++ b/packages/size-limit/test/fixtures/warn/package.json
@@ -8,7 +8,7 @@
   "size-limit": [
     {
       "name": "index",
-      "limit": "1 KB"
+      "limit": "1 kB"
     }
   ]
 }
diff --git a/packages/size-limit/test/fixtures/yarn-without-dev-dep/package.json b/packages/size-limit/test/fixtures/yarn-without-dev-dep/package.json
index 5d32dd63..4414791e 100644
--- a/packages/size-limit/test/fixtures/yarn-without-dev-dep/package.json
+++ b/packages/size-limit/test/fixtures/yarn-without-dev-dep/package.json
@@ -7,7 +7,7 @@
   "size-limit": [
     {
       "path": "index.js",
-      "limit": "1 KB",
+      "limit": "1 kB",
       "running": false
     }
   ]
diff --git a/packages/size-limit/test/get-config.test.js b/packages/size-limit/test/get-config.test.js
index 40c000e5..89916e65 100644
--- a/packages/size-limit/test/get-config.test.js
+++ b/packages/size-limit/test/get-config.test.js
@@ -57,8 +57,8 @@ it('supports globby and main field', async () => {
       {
         path: ['a*.js'],
         name: 'a',
-        limit: '1 KB',
-        sizeLimit: 1024,
+        limit: '1 kB',
+        sizeLimit: 1000,
         files: [fixture('globby', 'a1.js'), fixture('globby', 'a2.js')]
       },
       {
@@ -77,23 +77,23 @@ it('uses index.js by default', async () => {
       {
         name: 'index',
         files: [fixture('simple', 'index.js')],
-        limit: '1 KB',
-        sizeLimit: 1024
+        limit: '1 kB',
+        sizeLimit: 1000
       }
     ]
   })
 })
 
 it('overrides limit by CLI arg', async () => {
-  expect(await check('simple', ['--limit', '10 KB'])).toEqual({
+  expect(await check('simple', ['--limit', '10 kB'])).toEqual({
     configPath: 'package.json',
     cwd: fixture('simple'),
     checks: [
       {
         name: 'index',
         files: [fixture('simple', 'index.js')],
-        limit: '10 KB',
-        sizeLimit: 10240
+        limit: '10 kB',
+        sizeLimit: 10000
       }
     ]
   })
diff --git a/yarn.lock b/yarn.lock
index f01c8dd7..c25c7093 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1469,10 +1469,10 @@ builtin-status-codes@^3.0.0:
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
   integrity sha1-hZgoeOIbmOHGZCXgPQF0eI9Wnug=
 
-bytes@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.0.tgz#f6cf7933a360e0588fa9fde85651cdc7f805d1f6"
-  integrity sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg==
+bytes-iec@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/bytes-iec/-/bytes-iec-3.1.1.tgz#94cd36bf95c2c22a82002c247df8772d1d591083"
+  integrity sha512-fey6+4jDK7TFtFg/klGSvNKJctyU7n2aQdnM+CO0ruLPbqqMOM8Tio0Pc+deqUeVKX1tL5DQep1zQ7+37aTAsA==
 
 cacache@^12.0.2:
   version "12.0.4"