diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 5a6ee646..12d96a2d 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,6 @@
 [bumpversion]
-current_version = 1.2.0
+current_version = 1.2.1
 files = setup.py wfsim/__init__.py
 commit = True
 tag = True
+
diff --git a/setup.py b/setup.py
index dfc5547f..c7886c4b 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
 
 setuptools.setup(
     name='wfsim',
-    version='1.2.0',
+    version='1.2.1',
     description='XENONnT Waveform simulator',
     author='Wfsim contributors, the XENON collaboration',
     url='https://github.com/XENONnT/wfsim',
diff --git a/wfsim/__init__.py b/wfsim/__init__.py
index e8eb36f9..597a16a5 100644
--- a/wfsim/__init__.py
+++ b/wfsim/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "1.2.0"
+__version__ = "1.2.1"
 
 from .core.afterpulse import *
 from .core.pulse import *