diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index 515304392..52a9f30ab 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -1,5 +1,6 @@
-
 # Contributor Covenant Code of Conduct
+This is a modified version of the Contributor Covenant.
+See commit history to see our changes.
 
 ## Our Pledge
 
@@ -30,7 +31,7 @@ Examples of unacceptable behavior include:
 
 * The use of sexualized language or imagery, and sexual attention or advances of
   any kind
-* Trolling, insulting or derogatory comments, and personal or political attacks
+* Trolling (antagonistic, inflammatory, insincere behaviour), insulting or derogatory comments, and personal or political attacks
 * Public or private harassment
 * Publishing others' private information, such as a physical or email address,
   without their explicit permission