diff --git a/lib/includes/nghttp2/nghttp2.h b/lib/includes/nghttp2/nghttp2.h
index 8563a0a0..0b956a3e 100644
--- a/lib/includes/nghttp2/nghttp2.h
+++ b/lib/includes/nghttp2/nghttp2.h
@@ -40,13 +40,13 @@ extern "C" {
  *
  * The protocol version identification of this library supports.
  */
-#define NGHTTP2_PROTO_VERSION_ID "HTTP-draft-09/2.0"
+#define NGHTTP2_PROTO_VERSION_ID "h2-10"
 /**
  * @macro
  *
  * The length of :macro:`NGHTTP2_PROTO_VERSION_ID`.
  */
-#define NGHTTP2_PROTO_VERSION_ID_LEN 17
+#define NGHTTP2_PROTO_VERSION_ID_LEN 5
 
 struct nghttp2_session;
 /**
diff --git a/tests/nghttp2_npn_test.c b/tests/nghttp2_npn_test.c
index 5bb10fdc..d49865fe 100644
--- a/tests/nghttp2_npn_test.c
+++ b/tests/nghttp2_npn_test.c
@@ -33,14 +33,13 @@ static void http2(void)
 {
   const unsigned char p[] = {
     8, 'h', 't', 't', 'p', '/', '1', '.', '1',
-    17, 'H', 'T', 'T', 'P', '-', 'd', 'r', 'a', 'f', 't', '-', '0', '9', '/',
-    '2', '.', '0',
+    5, 'h', '2', '-', '1', '0',
     6, 's', 'p', 'd', 'y', '/', '3'
   };
   unsigned char outlen;
   unsigned char* out;
   CU_ASSERT(1 == nghttp2_select_next_protocol(&out, &outlen, p, sizeof(p)));
-  CU_ASSERT(17 == outlen);
+  CU_ASSERT(NGHTTP2_PROTO_VERSION_ID_LEN == outlen);
   CU_ASSERT(memcmp(NGHTTP2_PROTO_VERSION_ID, out, outlen) == 0);
 }