diff --git a/test/integration/size-limit/test/index.test.js b/test/integration/size-limit/test/index.test.js
index f1d7c0af660eb45..a156295d8ea0114 100644
--- a/test/integration/size-limit/test/index.test.js
+++ b/test/integration/size-limit/test/index.test.js
@@ -5,7 +5,7 @@ import { join } from 'path'
 import cheerio from 'cheerio'
 import fetch from 'node-fetch'
 
-jasmine.DEFAULT_TIMEOUT_INTERVAL = 1000 * 60 * 5
+jasmine.DEFAULT_TIMEOUT_INTERVAL = 1000 * 60 * 2
 
 let server
 let scriptsUrls
@@ -23,12 +23,11 @@ function getResponseSizes(resourceUrls) {
   )
 }
 
-function getResponseSizesKB(responseSizes) {
-  const responseSizeBytes = responseSizes.reduce(
+function getResponseSizesBytes(responseSizes) {
+  return responseSizes.reduce(
     (accumulator, responseSizeObj) => accumulator + responseSizeObj.bytes,
     0
   )
-  return Math.ceil(responseSizeBytes / 1024)
 }
 
 describe('Production response size', () => {
@@ -73,17 +72,17 @@ describe('Production response size', () => {
         scriptsUrls.filter(path => !path.endsWith('.module.js'))
       )),
     ]
-    const responseSizeKilobytes = getResponseSizesKB(responseSizes)
+    const responseSizesBytes = getResponseSizesBytes(responseSizes)
     console.log(
       `Response Sizes for default:\n${responseSizes
         .map(obj => ` ${obj.url}: ${obj.bytes} (bytes)`)
-        .join('\n')} \nOverall: ${responseSizeKilobytes} KB`
+        .join('\n')} \nOverall: ${responseSizesBytes} KB`
     )
 
     // These numbers are without gzip compression!
-    const delta = responseSizeKilobytes - 227
-    expect(delta).toBeLessThanOrEqual(0) // don't increase size
-    expect(delta).toBeGreaterThanOrEqual(-1) // don't decrease size without updating target
+    const delta = responseSizesBytes - 226 * 1024
+    expect(delta).toBeLessThanOrEqual(1024) // don't increase size more than 1kb
+    expect(delta).toBeGreaterThanOrEqual(-1024) // don't decrease size more than 1kb without updating target
   })
 
   it('should not increase the overall response size of modern build', async () => {
@@ -93,16 +92,16 @@ describe('Production response size', () => {
         scriptsUrls.filter(path => path.endsWith('.module.js'))
       )),
     ]
-    const responseSizeKilobytes = getResponseSizesKB(responseSizes)
+    const responseSizesBytes = getResponseSizesBytes(responseSizes)
     console.log(
       `Response Sizes for modern:\n${responseSizes
         .map(obj => ` ${obj.url}: ${obj.bytes} (bytes)`)
-        .join('\n')} \nOverall: ${responseSizeKilobytes} KB`
+        .join('\n')} \nOverall: ${responseSizesBytes} bytes`
     )
 
     // These numbers are without gzip compression!
-    const delta = responseSizeKilobytes - 195
-    expect(delta).toBeLessThanOrEqual(0) // don't increase size
-    expect(delta).toBeGreaterThanOrEqual(-1) // don't decrease size without updating target
+    const delta = responseSizesBytes - 195 * 1024
+    expect(delta).toBeLessThanOrEqual(1024) // don't increase size more than 1kb
+    expect(delta).toBeGreaterThanOrEqual(-1024) // don't decrease size more than 1kb without updating target
   })
 })