diff --git a/README.md b/README.md
index 8ba810f..29636ff 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,7 @@ ADAMm (adaptive moment estimation)
 ATAm (artificial tribe algorithm M)            
 ASHA (artificial showering algorithm)                  
 ASBO (adaptive social behavior optimization)        
+CSA (circle search algorithm)                    
 COAm (cuckoo optimization algorithm M)    
 BBBC (big bang big crunch)                                   
 CPA (cyclic parthenogenesis algorithm)