diff --git a/imucal/__init__.py b/imucal/__init__.py
index d4528c0..2a568f2 100644
--- a/imucal/__init__.py
+++ b/imucal/__init__.py
@@ -11,7 +11,7 @@
 )
 from imucal.ferraris_calibration_info import FerrarisCalibrationInfo, TurntableCalibrationInfo
 
-__version__ = "2.6.0"
+__version__ = "2.5.0"
 
 __all__ = [
     "CalibrationInfo",
diff --git a/pyproject.toml b/pyproject.toml
index 3b9113e..39388f1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "imucal"
-version = "2.6.0"
+version = "2.5.0"
 description = "A Python library to calibrate 6 DOF IMUs"
 authors = [
     "Arne Küderle <arne.kuederle@fau.de>",