diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9788b583..53e25df0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ and this project strives to adhere to
 [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 
-### [2.1.0a3] - *pending*
+### [2.1.0b1] - 2020-11-13
 
 #### Added
 
diff --git a/README.rst b/README.rst
index df82eeed..3b63f9e7 100644
--- a/README.rst
+++ b/README.rst
@@ -122,11 +122,11 @@ inventory creation/modification::
     >>> import sphobjinv as soi
     >>> inv = soi.Inventory('doc/build/html/objects.inv')
     >>> print(inv)
-    <Inventory (fname_zlib): sphobjinv v2.1a3, 185 objects>
+    <Inventory (fname_zlib): sphobjinv v2.1b1, 185 objects>
     >>> inv.project
     'sphobjinv'
     >>> inv.version
-    '2.1a3'
+    '2.1b1'
     >>> inv.objects[0]
     DataObjStr(name='sphobjinv.cmdline', domain='py', role='module', priority='0', uri='cli/implementation.html#module-$', dispname='-')
 
diff --git a/src/sphobjinv/version.py b/src/sphobjinv/version.py
index e8721b9f..a9e029a0 100644
--- a/src/sphobjinv/version.py
+++ b/src/sphobjinv/version.py
@@ -25,4 +25,4 @@
 
 """
 
-__version__ = "2.1a3.dev0"
+__version__ = "2.1b1"