diff --git a/README.asciidoc b/README.asciidoc
index 36694156..f433f779 100644
--- a/README.asciidoc
+++ b/README.asciidoc
@@ -18,8 +18,8 @@ Cowboy is *clean* and *well tested* Erlang code.
 
 == Online documentation
 
-* https://ninenines.eu/docs/en/cowboy/2.2/guide[User guide]
-* https://ninenines.eu/docs/en/cowboy/2.2/manual[Function reference]
+* https://ninenines.eu/docs/en/cowboy/2.3/guide[User guide]
+* https://ninenines.eu/docs/en/cowboy/2.3/manual[Function reference]
 
 == Offline documentation