diff --git a/setup.py b/setup.py
index d769f6e..49014f2 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,14 @@
 from setuptools import setup
 import os
+import re
+
+def find_version():
+    with open('tasmotizer.py', 'r') as version_file:
+        version_match = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]",
+                                  version_file.read(), re.M)
+        if version_match:
+            return version_match.group(1)
+        raise RuntimeError("Unable to find version string.")
 
 if os.name == "nt":
     scripts = None
@@ -14,9 +23,9 @@ else:
 
 setup(
     name='tasmotizer',
-    version="1.2",
+    version=find_version(),
     url='https://github.com/tasmota/tasmotizer',
-    py_modules=['tasmotizer', 'gui', 'tasmotizer_esptool', 'banner'],
+    py_modules=['tasmotizer', 'gui', 'tasmotizer_esptool', 'banner', 'utils'],
     license='GPLv3',
     author='jziolkowski',
     author_email='jacek@ziolkowscy.com',
diff --git a/tasmotizer.py b/tasmotizer.py
index a290b46..e3a6a19 100644
--- a/tasmotizer.py
+++ b/tasmotizer.py
@@ -22,6 +22,8 @@ import banner
 from gui import HLayout, VLayout, GroupBoxH, GroupBoxV, SpinBox, dark_palette
 from utils import MODULES, NoBinFile, NetworkError
 
+__version__ = '1.2.1'
+
 BINS_URL = 'http://ota.tasmota.com'
 
 
@@ -495,7 +497,7 @@ class Tasmotizer(QDialog):
 
         self.esp_thread = None
 
-        self.setWindowTitle('Tasmotizer 1.2')
+        self.setWindowTitle(f'Tasmotizer {__version__}')
         self.setMinimumWidth(480)
 
         self.mode = 0  # BIN file