diff --git a/finesse/gui/main_window.py b/finesse/gui/main_window.py
index be8f587e..02a3e05d 100644
--- a/finesse/gui/main_window.py
+++ b/finesse/gui/main_window.py
@@ -14,6 +14,7 @@
 
 from finesse.config import (
     APP_NAME,
+    APP_VERSION,
     TEMPERATURE_MONITOR_COLD_BB_IDX,
     TEMPERATURE_MONITOR_HOT_BB_IDX,
 )
@@ -36,7 +37,7 @@ class MainWindow(QMainWindow):
     def __init__(self) -> None:
         """Create a new MainWindow."""
         super().__init__()
-        self.setWindowTitle(APP_NAME)
+        self.setWindowTitle(f"{APP_NAME} v{APP_VERSION}")
 
         set_uncaught_exception_handler(self)
 
diff --git a/pyproject.toml b/pyproject.toml
index 42310888..72937980 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "FINESSE"
-version = "1.2.0"
+version = "1.3.0"
 description = "A graphical user interface for controlling and monitoring an interferometer device."
 authors = [
     "Alex Dewar <a.dewar@imperial.ac.uk>",