diff --git a/site/content/docs/5.0/utilities/api.md b/site/content/docs/5.0/utilities/api.md
index eb821c71f0..09af1738c0 100644
--- a/site/content/docs/5.0/utilities/api.md
+++ b/site/content/docs/5.0/utilities/api.md
@@ -30,6 +30,7 @@ $utilities: (
     values: (
       0: 0,
       25: .25,
+      50: .5,
       75: .75,
       100: 1,
     )
@@ -46,6 +47,9 @@ Output:
 .opacity-25 {
   opacity: .25;
 }
+.opacity-50 {
+  opacity: .5;
+}
 .opacity-75 {
   opacity: .75;
 }
@@ -67,6 +71,7 @@ $utilities: (
     values: (
       0: 0,
       25: .25,
+      50: .5,
       75: .75,
       100: 1,
     )
@@ -83,6 +88,9 @@ Output:
 .o-25 {
   opacity: .25;
 }
+.o-50 {
+  opacity: .5;
+}
 .o-75 {
   opacity: .75;
 }
@@ -103,6 +111,7 @@ $utilities: (
     values: (
       0: 0,
       25: .25,
+      50: .5,
       75: .75,
       100: 1,
     )
@@ -119,6 +128,9 @@ Output:
 .opacity-25 {
   opacity: .25;
 }
+.opacity-50 {
+  opacity: .5;
+}
 .opacity-75 {
   opacity: .75;
 }
@@ -132,6 +144,9 @@ Output:
   .opacity-sm-25 {
     opacity: .25;
   }
+  .opacity-sm-50 {
+    opacity: .5;
+  }
   .opacity-sm-75 {
     opacity: .75;
   }
@@ -146,6 +161,9 @@ Output:
   .opacity-md-25 {
     opacity: .25;
   }
+  .opacity-md-50 {
+    opacity: .5;
+  }
   .opacity-md-75 {
     opacity: .75;
   }
@@ -160,6 +178,9 @@ Output:
   .opacity-lg-25 {
     opacity: .25;
   }
+  .opacity-lg-50 {
+    opacity: .5;
+  }
   .opacity-lg-75 {
     opacity: .75;
   }
@@ -174,6 +195,9 @@ Output:
   .opacity-xl-25 {
     opacity: .25;
   }
+  .opacity-xl-50 {
+    opacity: .5;
+  }
   .opacity-xl-75 {
     opacity: .75;
   }
@@ -212,6 +236,7 @@ $utilities: (
     values: (
       0: 0,
       25: .25,
+      50: .5,
       75: .75,
       100: 1,
     )
@@ -228,6 +253,9 @@ Output:
 .o-25 {
   opacity: .25;
 }
+.o-50 {
+  opacity: .5;
+}
 .o-75 {
   opacity: .75;
 }
@@ -242,6 +270,9 @@ Output:
   .o-print-25 {
     opacity: .25;
   }
+  .o-print-50 {
+    opacity: .5;
+  }
   .o-print-75 {
     opacity: .75;
   }