diff --git a/README.rst b/README.rst
index a6dbc73e..4fad9823 100644
--- a/README.rst
+++ b/README.rst
@@ -16,10 +16,10 @@ We didn't cover everything, but we have Python binding of this libary.
 Development Status
 ------------------
 
-We started to implement h2-lc
-(http://tools.ietf.org/html/draft-ietf-httpbis-http2-12) and the
+We started to implement h2-13
+(http://tools.ietf.org/html/draft-ietf-httpbis-http2-13) and the
 header compression
-(http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-07).
+(http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-08).
 
 The nghttp2 code base was forked from spdylay project.
 
@@ -45,12 +45,12 @@ implementation.
 
 * https://nghttp2.org/ (TLS + NPN)
 
-  NPN offer ``h2-12``, ``spdy/3.1`` and ``http/1.1``.
+  NPN offer ``h2-13``, ``spdy/3.1`` and ``http/1.1``.
   ALPN is currently disabled.
 
 * http://nghttp2.org/ (Upgrade / Direct)
 
-  ``h2c-12`` and ``http/1.1``.  We configured this server to send
+  ``h2c-13`` and ``http/1.1``.  We configured this server to send
   ALTSVC frame or Alt-Svc header field to announce that alternative
   service is available at port 443.
 
@@ -179,10 +179,10 @@ output from ``nghttp`` client::
 
     $ src/nghttp -nv https://nghttp2.org
     [  0.033][NPN] server offers:
-              * h2-lc
+              * h2-13
               * spdy/3.1
               * http/1.1
-    The negotiated protocol: h2-lc
+    The negotiated protocol: h2-13
     [  0.068] send SETTINGS frame <length=15, flags=0x00, stream_id=0>
               (niv=3)
               [SETTINGS_MAX_CONCURRENT_STREAMS(3):100]
@@ -251,7 +251,7 @@ The HTTP Upgrade is performed like this::
     GET / HTTP/1.1
     Host: nghttp2.org
     Connection: Upgrade, HTTP2-Settings
-    Upgrade: h2c-lc
+    Upgrade: h2c-13
     HTTP2-Settings: AwAAAGQEAAD__wUAAAAB
     Accept: */*
     User-Agent: nghttp2/0.4.0-DEV
@@ -260,7 +260,7 @@ The HTTP Upgrade is performed like this::
     [  0.024] HTTP Upgrade response
     HTTP/1.1 101 Switching Protocols
     Connection: Upgrade
-    Upgrade: h2c-lc
+    Upgrade: h2c-13
 
 
     [  0.024] HTTP Upgrade success
@@ -274,7 +274,7 @@ The HTTP Upgrade is performed like this::
               [SETTINGS_MAX_CONCURRENT_STREAMS(3):100]
               [SETTINGS_INITIAL_WINDOW_SIZE(4):65535]
     [  0.024] recv ALTSVC frame <length=43, flags=0x00, stream_id=0>
-              (max-age=86400, port=443, protocol_id=h2-lc, host=nghttp2.org, origin=http://nghttp2.org)
+              (max-age=86400, port=443, protocol_id=h2-13, host=nghttp2.org, origin=http://nghttp2.org)
     [  0.024] send SETTINGS frame <length=0, flags=0x01, stream_id=0>
               ; ACK
               (niv=0)
@@ -382,7 +382,7 @@ information.  Here is sample output from ``nghttpd`` server::
 nghttpx - proxy
 +++++++++++++++
 
-``nghttpx`` is a multi-threaded reverse proxy for ``h2-lc``, SPDY and
+``nghttpx`` is a multi-threaded reverse proxy for ``h2-13``, SPDY and
 HTTP/1.1 and powers nghttp2.org site.  It has several operation modes:
 
 ================== ============================ ============== =============
@@ -396,7 +396,7 @@ default mode       HTTP/2, SPDY, HTTP/1.1 (TLS) HTTP/1.1       Reverse proxy
 ================== ============================ ============== =============
 
 The interesting mode at the moment is the default mode.  It works like
-a reverse proxy and listens for ``h2-lc``, SPDY and HTTP/1.1 and can
+a reverse proxy and listens for ``h2-13``, SPDY and HTTP/1.1 and can
 be deployed SSL/TLS terminator for existing web server.
 
 The default mode, ``--http2-proxy`` and ``--http2-bridge`` modes use
diff --git a/lib/includes/nghttp2/nghttp2.h b/lib/includes/nghttp2/nghttp2.h
index d8fc577a..b9deea9a 100644
--- a/lib/includes/nghttp2/nghttp2.h
+++ b/lib/includes/nghttp2/nghttp2.h
@@ -41,7 +41,7 @@ extern "C" {
  * The protocol version identification string of this library
  * supports.  This identifier is used if HTTP/2 is used over TLS.
  */
-#define NGHTTP2_PROTO_VERSION_ID "h2-lc"
+#define NGHTTP2_PROTO_VERSION_ID "h2-13"
 /**
  * @macro
  *
@@ -56,7 +56,7 @@ extern "C" {
  * supports.  This identifier is used if HTTP/2 is used over cleartext
  * TCP.
  */
-#define NGHTTP2_CLEARTEXT_PROTO_VERSION_ID "h2c-lc"
+#define NGHTTP2_CLEARTEXT_PROTO_VERSION_ID "h2c-13"
 
 /**
  * @macro
diff --git a/tests/nghttp2_npn_test.c b/tests/nghttp2_npn_test.c
index a013d93c..fe42ba0a 100644
--- a/tests/nghttp2_npn_test.c
+++ b/tests/nghttp2_npn_test.c
@@ -33,7 +33,7 @@ static void http2(void)
 {
   const unsigned char p[] = {
     8, 'h', 't', 't', 'p', '/', '1', '.', '1',
-    5, 'h', '2', '-', 'l', 'c',
+    5, 'h', '2', '-', '1', '3',
     6, 's', 'p', 'd', 'y', '/', '3'
   };
   unsigned char outlen;