Fix typo CONTRIBUTING.md

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 78c515007d03a75ba2b0261d25ebc74f46531244..b57217165e6b79c239351ebeef85647bafdab18a 100644 (file)
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -148,7 +148,7 @@ Security
 --------
 
 Security is the primary focus of `rust-lightning`; disclosure of security
-vulnerabilites helps prevent user loss of funds. If you believe a vulnerability
+vulnerabilities helps prevent user loss of funds. If you believe a vulnerability
 may affect other Lightning implementations, please inform them.
 
 You can find further information on submitting (possible) vulnerabilities in the