diff --git a/README.md b/README.md
index f5dcbbe..f4ce541 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ API documentation is available [here](https://bitchan.github.io/bitmessage/docs/
 ## References
 
 * [Bitmessage wiki](https://bitmessage.org/wiki/Main_Page)
-* [Protocol specification](https://bitmessage.org/wiki/Protocol_specification)
+* [Protocol specification](https://pybitmessage.rtfd.io/en/v0.6/protocol.html)
 * [Whitepaper](https://bitmessage.org/bitmessage.pdf)
 
 ## Feature matrix
@@ -51,7 +51,7 @@ API documentation is available [here](https://bitchan.github.io/bitmessage/docs/
 - [x] POW
 - [x] High-level classes
   - [x] Address
-  - [x] UserAgent
+  - [ ] UserAgent
 - [ ] PyBitmessage configs parsing
   - [ ] keys.dat
   - [ ] knownnodes.dat