1 files changed, 6 insertions, 0 deletions

diff --git a/README.md b/README.md
index cc112db..53ed70c 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,12 @@ $ cd algebraic-structures
 $ chicken-install
 ```
 
+### Requirements
+
+- matchable
+- srfi-41
+- srfi-133
+
 ## Usage
 
 ### Define Semigroup, Monoid and Group