diff --git a/subjects/isupper/README.md b/subjects/isupper/README.md
index 2df4ccfc..8550b0f3 100644
--- a/subjects/isupper/README.md
+++ b/subjects/isupper/README.md
@@ -2,7 +2,7 @@
 
 ### Instructions
 
-Write a function that returns 'true' if the 'string' passed as parameter contains only the uppercase characters; returns 'false' otherwise.
+Write a function that returns `true` if the `string` passed as parameter contains only uppercase characters, otherwise, returns `false`.
 
 ### Expected function