VERSION         |  2 +-
 doc/install.rst | 12 ++++++------

diff --git a/VERSION b/VERSION
index f7246d61f23e04a0eb9279fbf363116e02e5dfaab1d96d40a8c18fe134eefc02..545699a8c391647bd0a5e147ba0f4b73da33223bd2f1f498cf87d5b0fe9b6b90 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-9.0
+9.1
diff --git a/doc/install.rst b/doc/install.rst
index 657fc4fe01b21337b01f322b4719151f68088a5c84361b671cdfc9dc5952af7d..94a2a2a36e8ed4b0f4f141ceb16ba88c3cbdcac2a00011c4981bfdc77a2c9a92 100644
--- a/doc/install.rst
+++ b/doc/install.rst
@@ -4,11 +4,11 @@
 Preferable way is to :ref:`download <download>` tarball with the
 signature from `official website <http://www.pyderasn.cypherpunks.ru/>`__::
 
-    $ [fetch|wget] http://www.pyderasn.cypherpunks.ru/download/pyderasn-9.0.tar.zst
-    $ [fetch|wget] http://www.pyderasn.cypherpunks.ru/download/pyderasn-9.0.tar.zst.sig
-    $ gpg --verify pyderasn-9.0.tar.zst.sig pyderasn-9.0.tar.zst
-    $ zstd -d < pyderasn-9.0.tar.zst | tar xf -
-    $ cd pyderasn-9.0
+    $ [fetch|wget] http://www.pyderasn.cypherpunks.ru/download/pyderasn-9.1.tar.zst
+    $ [fetch|wget] http://www.pyderasn.cypherpunks.ru/download/pyderasn-9.1.tar.zst.sig
+    $ gpg --verify pyderasn-9.1.tar.zst.sig pyderasn-9.1.tar.zst
+    $ zstd -d < pyderasn-9.1.tar.zst | tar xf -
+    $ cd pyderasn-9.1
     $ python setup.py install
     # or copy pyderasn.py (possibly termcolor.py) to your PYTHONPATH
 
@@ -18,7 +18,7 @@ * ``dateutil`` is an optional dependency used for ``.totzdatetime()`` method.
 
 You could use pip (**no** OpenPGP authentication is performed!) with PyPI::
 
-    $ echo pyderasn==9.0 --hash=sha256:TO-BE-FILLED > requirements.txt
+    $ echo pyderasn==9.1 --hash=sha256:TO-BE-FILLED > requirements.txt
     $ pip install --requirement requirements.txt
 
 You have to verify downloaded tarballs integrity and authenticity to be