diff --git a/CHANGES.rst b/CHANGES.rst
index 3ee4bd3f..efb786be 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,11 @@
 Changes
 =======
 
+1.3.1 -- 2020-09-01
+-------------------
+* Fixed: Stub files (type hints) were missing from the source distribution.
+
+
 1.3.0 -- 2020-08-31
 -------------------
 * Fixed `#84 <https://github.com/heuer/segno/issues/84>`_:
diff --git a/man/segno.1 b/man/segno.1
index deaf8a10..35d6ed78 100644
--- a/man/segno.1
+++ b/man/segno.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "SEGNO" "1" "Aug 31, 2020" "1.3.0" "Segno"
+.TH "SEGNO" "1" "Sep 01, 2020" "1.3.1" "Segno"
 .SH NAME
 segno \- Segno QR Code encoder
 .
diff --git a/segno/__init__.py b/segno/__init__.py
index adb020b5..3bb33bef 100644
--- a/segno/__init__.py
+++ b/segno/__init__.py
@@ -21,7 +21,7 @@
 except NameError:  # pragma: no cover
     str_type = str
 
-__version__ = '1.3.1.dev'
+__version__ = '1.3.1'
 
 __all__ = ('make', 'make_qr', 'make_micro', 'make_sequence', 'QRCode',
            'QRCodeSequence', 'DataOverflowError')