diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index c83d808..e882aa0 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.1.0
+current_version = 2.1.1
 commit = True
 tag = True
 sign_tags = True
diff --git a/CITATION.cff b/CITATION.cff
index c9b9099..43b0dbe 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -9,7 +9,7 @@ authors:
   family-names: Kotik
 - given-names: Jörg
   family-names: Götte
-version: 2.1.0
+version: 2.1.1
 date-released: 2021-08-16
 repository-code: https://github.com/DanielKotik/Optical-beams-MEEP
 license: MIT
diff --git a/optbeam/__init__.py b/optbeam/__init__.py
index 9b26d54..d49cffa 100644
--- a/optbeam/__init__.py
+++ b/optbeam/__init__.py
@@ -1,5 +1,5 @@
 
-__version__ = "2.1.0"
+__version__ = "2.1.1"
 
 from math import (degrees as _degrees,
                   asin as _asin,
diff --git a/setup.py b/setup.py
index 6a6b51f..227afb5 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 setup(
     name="optbeam",
-    version="2.1.0",
+    version="2.1.1",
     description=("Simulation of reflection and refraction of polarized "
                  "opticial beams at plane and curved dielectric interfaces"),
     long_description=readme,