diff --git a/__tests__/fixtures/tailwind-output-important.css b/__tests__/fixtures/tailwind-output-important.css
index f67b53ee8..e285aef65 100644
--- a/__tests__/fixtures/tailwind-output-important.css
+++ b/__tests__/fixtures/tailwind-output-important.css
@@ -3761,15 +3761,15 @@ table {
   max-width: 64rem !important;
 }
 
-.max-w-7xl {
+.max-w-6xl {
   max-width: 72rem !important;
 }
 
-.max-w-8xl {
+.max-w-7xl {
   max-width: 80rem !important;
 }
 
-.max-w-9xl {
+.max-w-8xl {
   max-width: 90rem !important;
 }
 
@@ -9858,15 +9858,15 @@ table {
     max-width: 64rem !important;
   }
 
-  .sm\:max-w-7xl {
+  .sm\:max-w-6xl {
     max-width: 72rem !important;
   }
 
-  .sm\:max-w-8xl {
+  .sm\:max-w-7xl {
     max-width: 80rem !important;
   }
 
-  .sm\:max-w-9xl {
+  .sm\:max-w-8xl {
     max-width: 90rem !important;
   }
 
@@ -15940,15 +15940,15 @@ table {
     max-width: 64rem !important;
   }
 
-  .md\:max-w-7xl {
+  .md\:max-w-6xl {
     max-width: 72rem !important;
   }
 
-  .md\:max-w-8xl {
+  .md\:max-w-7xl {
     max-width: 80rem !important;
   }
 
-  .md\:max-w-9xl {
+  .md\:max-w-8xl {
     max-width: 90rem !important;
   }
 
@@ -22022,15 +22022,15 @@ table {
     max-width: 64rem !important;
   }
 
-  .lg\:max-w-7xl {
+  .lg\:max-w-6xl {
     max-width: 72rem !important;
   }
 
-  .lg\:max-w-8xl {
+  .lg\:max-w-7xl {
     max-width: 80rem !important;
   }
 
-  .lg\:max-w-9xl {
+  .lg\:max-w-8xl {
     max-width: 90rem !important;
   }
 
@@ -28104,15 +28104,15 @@ table {
     max-width: 64rem !important;
   }
 
-  .xl\:max-w-7xl {
+  .xl\:max-w-6xl {
     max-width: 72rem !important;
   }
 
-  .xl\:max-w-8xl {
+  .xl\:max-w-7xl {
     max-width: 80rem !important;
   }
 
-  .xl\:max-w-9xl {
+  .xl\:max-w-8xl {
     max-width: 90rem !important;
   }
 
diff --git a/__tests__/fixtures/tailwind-output.css b/__tests__/fixtures/tailwind-output.css
index 6536ea87f..29b837394 100644
--- a/__tests__/fixtures/tailwind-output.css
+++ b/__tests__/fixtures/tailwind-output.css
@@ -3761,15 +3761,15 @@ table {
   max-width: 64rem;
 }
 
-.max-w-7xl {
+.max-w-6xl {
   max-width: 72rem;
 }
 
-.max-w-8xl {
+.max-w-7xl {
   max-width: 80rem;
 }
 
-.max-w-9xl {
+.max-w-8xl {
   max-width: 90rem;
 }
 
@@ -9858,15 +9858,15 @@ table {
     max-width: 64rem;
   }
 
-  .sm\:max-w-7xl {
+  .sm\:max-w-6xl {
     max-width: 72rem;
   }
 
-  .sm\:max-w-8xl {
+  .sm\:max-w-7xl {
     max-width: 80rem;
   }
 
-  .sm\:max-w-9xl {
+  .sm\:max-w-8xl {
     max-width: 90rem;
   }
 
@@ -15940,15 +15940,15 @@ table {
     max-width: 64rem;
   }
 
-  .md\:max-w-7xl {
+  .md\:max-w-6xl {
     max-width: 72rem;
   }
 
-  .md\:max-w-8xl {
+  .md\:max-w-7xl {
     max-width: 80rem;
   }
 
-  .md\:max-w-9xl {
+  .md\:max-w-8xl {
     max-width: 90rem;
   }
 
@@ -22022,15 +22022,15 @@ table {
     max-width: 64rem;
   }
 
-  .lg\:max-w-7xl {
+  .lg\:max-w-6xl {
     max-width: 72rem;
   }
 
-  .lg\:max-w-8xl {
+  .lg\:max-w-7xl {
     max-width: 80rem;
   }
 
-  .lg\:max-w-9xl {
+  .lg\:max-w-8xl {
     max-width: 90rem;
   }
 
@@ -28104,15 +28104,15 @@ table {
     max-width: 64rem;
   }
 
-  .xl\:max-w-7xl {
+  .xl\:max-w-6xl {
     max-width: 72rem;
   }
 
-  .xl\:max-w-8xl {
+  .xl\:max-w-7xl {
     max-width: 80rem;
   }
 
-  .xl\:max-w-9xl {
+  .xl\:max-w-8xl {
     max-width: 90rem;
   }
 
diff --git a/defaultTheme.js b/defaultTheme.js
index 2a4e5da02..5ef87ef18 100644
--- a/defaultTheme.js
+++ b/defaultTheme.js
@@ -264,9 +264,9 @@ module.exports = function() {
       '3xl': '48rem',
       '4xl': '56rem',
       '5xl': '64rem',
-      '7xl': '72rem',
-      '8xl': '80rem',
-      '9xl': '90rem',
+      '6xl': '72rem',
+      '7xl': '80rem',
+      '8xl': '90rem',
       full: '100%',
     },
     maxHeight: {