diff --git a/README.md b/README.md
index 735f8cc..94ccf2b 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ The Automatic Certificate Management Environment (ACME), is an internet standard
 ## Key features
 
 - http-01, dns-01 and [tls-alpn-01](https://tools.ietf.org/html/rfc8737) challenges
-- IP Identifier Validation Extension [RFC 8738](https://tools.ietf.org/html/rfc8738)
+- IP identifier validation extension [RFC 8738](https://tools.ietf.org/html/rfc8738)
 - RSA 2048, RSA 4096, ECDSA P-256 and ECDSA P-384 certificates
 - Internationalized domain names support
 - Fully customizable challenge validation action
@@ -36,7 +36,7 @@ The Automatic Certificate Management Environment (ACME), is an internet standard
 
 ## Planned features
 
-- STAR Certificates [RFC 8739](https://tools.ietf.org/html/rfc8739)
+- STAR certificates [RFC 8739](https://tools.ietf.org/html/rfc8739)
 - Daemon and certificates management via the `acmectl` tool
 - Nonce scoping configuration
 - HTTP/2 support