diff --git a/doc/whats_new.rst b/doc/whats_new.rst
index 91ad7f3d..658fb96a 100644
--- a/doc/whats_new.rst
+++ b/doc/whats_new.rst
@@ -6,7 +6,7 @@
  What's New
 ============
 
-v2.19.1.0 (25. Oct 2019)
+v2.19.1.1 (25. Oct 2019)
 ========================
 - Update Stan source to v2.19.1 (`release notes <https://github.com/stan-dev/stan/releases/tag/v2.19.1>`_)
 - Fix order of per-chain values returned by Fit ``summary`` (`GH646 <https://github.com/stan-dev/pystan/issues/646>`_)
diff --git a/pystan/__init__.py b/pystan/__init__.py
index 47e0cf53..3c36824a 100644
--- a/pystan/__init__.py
+++ b/pystan/__init__.py
@@ -19,4 +19,4 @@
 
 # following PEP 386
 # See also https://docs.openstack.org/pbr/latest/user/semver.html
-__version__ = '2.19.1.0'
+__version__ = '2.19.1.1'