diff --git a/README.md b/README.md
index bb32596d..e43e1fa6 100644
--- a/README.md
+++ b/README.md
@@ -339,7 +339,7 @@ You can configure the maximum duration for a single test case with
   - `phpunit/phpunit:^8.5.19`
   - `phpunit/phpunit:^9.0.0`
 
-The following example configures the maximum durations for single test cases to 5.000 ms, 4.000 ms, and 3.000 ms:
+The following example configures the maximum durations for single test cases to 5,000 ms, 4,000 ms, and 3,000 ms:
 
 ```php
 <?php