diff --git a/README.md b/README.md
index c6dea4f..90e9aee 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
    
    Contains CPPs with natural or modified amino acids.
 
-       1.1. POSEIDON
+       **1.1. POSEIDON**
 
         Contains heterogeneous experimental data regarding CPP (natural and non-natural amino acids) activity measurements (.csv format), which are:
           - peptide name,