diff --git a/assets/icon.png b/assets/icon.png
new file mode 100644
index 0000000..142cd53
Binary files /dev/null and b/assets/icon.png differ
diff --git a/source/gui/install.py b/source/gui/install.py
index 6d6eaab..6fd5dee 100644
--- a/source/gui/install.py
+++ b/source/gui/install.py
@@ -52,7 +52,9 @@ class Window(tkinter.Tk):
 
         self.title(_("INSTALLER_TITLE"))
         self.resizable(False, False)
-        self.iconbitmap("./assets/icon.ico")
+
+        self.icon = tkinter.PhotoImage(file="./assets/icon.png")
+        self.iconphoto(True, self.icon)
 
         # menu bar
         self.menu = Menu(self)