diff --git a/README.md b/README.md
index ce88b6a4..4962b304 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ Also see:
 
 ### Installation
 
-The Ruby SDK works with Ruby 3.3, 3.4, and 4.0.
+The Ruby SDK works with Ruby 3.3, 3.4, and 4.0. (If using Fibers, Ruby 3.3.2+ is recommended due to problems with fibers in previous versions.)
 
 Can require in a Gemfile like: