diff --git a/contrib/nghttpx.service.in b/contrib/nghttpx.service.in
index 58a39969..24109987 100644
--- a/contrib/nghttpx.service.in
+++ b/contrib/nghttpx.service.in
@@ -1,5 +1,5 @@
 [Unit]
-Description=HTTP/2 experimental proxy
+Description=HTTP/2 proxy
 After=network.target
 
 [Service]
diff --git a/doc/conf.py.in b/doc/conf.py.in
index e6bd3203..66022335 100644
--- a/doc/conf.py.in
+++ b/doc/conf.py.in
@@ -244,12 +244,9 @@ latex_documents = [
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    ('nghttp.1', 'nghttp', u'HTTP/2 experimental client',
-     [u'Tatsuhiro Tsujikawa'], 1),
-    ('nghttpd.1', 'nghttpd', u'HTTP/2 experimental server',
-     [u'Tatsuhiro Tsujikawa'], 1),
-    ('nghttpx.1', 'nghttpx', u'HTTP/2 experimental proxy',
-     [u'Tatsuhiro Tsujikawa'], 1),
+    ('nghttp.1', 'nghttp', u'HTTP/2 client', [u'Tatsuhiro Tsujikawa'], 1),
+    ('nghttpd.1', 'nghttpd', u'HTTP/2 server', [u'Tatsuhiro Tsujikawa'], 1),
+    ('nghttpx.1', 'nghttpx', u'HTTP/2 proxy', [u'Tatsuhiro Tsujikawa'], 1),
     ('h2load.1', 'h2load', u'HTTP/2 benchmarking tool',
      [u'Tatsuhiro Tsujikawa'], 1)
 ]
diff --git a/doc/sources/index.rst b/doc/sources/index.rst
index 14a469fd..0f848110 100644
--- a/doc/sources/index.rst
+++ b/doc/sources/index.rst
@@ -6,8 +6,7 @@
 nghttp2 - HTTP/2 C Library
 ============================
 
-This is an experimental implementation of Hypertext Transfer Protocol
-version 2.
+This is an implementation of Hypertext Transfer Protocol version 2.
 
 The project is hosted at `github.com/tatsuhiro-t/nghttp2 <https://github.com/tatsuhiro-t/nghttp2>`_.
 
diff --git a/src/nghttp.cc b/src/nghttp.cc
index c2199bfa..83185f1c 100644
--- a/src/nghttp.cc
+++ b/src/nghttp.cc
@@ -2356,7 +2356,7 @@ void print_version(std::ostream &out) {
 namespace {
 void print_usage(std::ostream &out) {
   out << R"(Usage: nghttp [OPTIONS]... <URI>...
-HTTP/2 experimental client)" << std::endl;
+HTTP/2 client)" << std::endl;
 }
 } // namespace
 
diff --git a/src/nghttpd.cc b/src/nghttpd.cc
index ea3603fb..93dafe74 100644
--- a/src/nghttpd.cc
+++ b/src/nghttpd.cc
@@ -87,7 +87,7 @@ void print_version(std::ostream &out) {
 namespace {
 void print_usage(std::ostream &out) {
   out << "Usage: nghttpd [OPTION]... <PORT> [<PRIVATE_KEY> <CERT>]\n"
-      << "HTTP/2 experimental server" << std::endl;
+      << "HTTP/2 server" << std::endl;
 }
 } // namespace