diff --git a/GitUpdateChecker.exe b/GitUpdateChecker.exe
index 6f300f2..0e851f3 100644
Binary files a/GitUpdateChecker.exe and b/GitUpdateChecker.exe differ
diff --git a/build.bat b/build.bat
index 5d11f8d..c0205a1 100644
--- a/build.bat
+++ b/build.bat
@@ -19,10 +19,13 @@ if errorlevel 1 (
     pip install pyinstaller
 )
 
+echo [*] Conversion icon.png -> icon.ico...
+python -c "from PIL import Image; img = Image.open('icon.png'); img.save('icon.ico', format='ICO', sizes=[(256,256),(128,128),(64,64),(32,32),(16,16)])"
+
 echo [*] Compilation en cours...
 echo.
 
-pyinstaller --onefile --noconsole --name "GitUpdateChecker" --icon=NONE git_updater.py
+pyinstaller --onefile --noconsole --name "GitUpdateChecker" --icon=icon.ico git_updater.py
 
 echo.
 if exist "dist\GitUpdateChecker.exe" (
diff --git a/git_updater.py b/git_updater.py
index 4e1f4fd..28da6be 100644
--- a/git_updater.py
+++ b/git_updater.py
@@ -5,7 +5,7 @@ Accès lecture seule uniquement (fetch/pull/checkout, jamais de push).
 Tous les chemins sont relatifs à l'emplacement de l'exécutable.
 """
 
-VERSION = "0.5.7"
+VERSION = "0.5.8"
 
 import subprocess
 import sys
@@ -484,6 +484,16 @@ class App(tk.Tk):
         self.repos_config = load_repos()
         self.repo_results = []
 
+        # Icône de la fenêtre (barre de titre + taskbar)
+        self._app_icon = None
+        icon_path = get_exe_dir() / "icon.png"
+        if icon_path.exists():
+            try:
+                self._app_icon = tk.PhotoImage(file=str(icon_path))
+                self.iconphoto(True, self._app_icon)
+            except Exception:
+                self._app_icon = None
+
         log.info(f"=== Demarrage Git Update Checker v{VERSION} ===")
         self._cleanup_old_exe()
         self._build_ui()
@@ -524,6 +534,19 @@ class App(tk.Tk):
         # Header
         header = ttk.Frame(self)
         header.pack(fill="x", padx=15, pady=(15, 5))
+
+        # Icône dans le coin haut gauche (redimensionnée à 32x32)
+        if self._app_icon:
+            try:
+                icon_small = tk.PhotoImage(file=str(get_exe_dir() / "icon.png")).subsample(
+                    max(1, self._app_icon.width() // 32),
+                    max(1, self._app_icon.height() // 32),
+                )
+                self._icon_small = icon_small  # garder la référence
+                ttk.Label(header, image=icon_small, style="TLabel").pack(side="left", padx=(0, 8))
+            except Exception:
+                pass
+
         ttk.Label(header, text=f"Git Update Checker v{VERSION}", style="Title.TLabel").pack(side="left")
         self.status_label = ttk.Label(header, text="Verification en cours...", style="Status.TLabel")
         self.status_label.pack(side="right")
diff --git a/icon.ico b/icon.ico
new file mode 100644
index 0000000..e43fc52
Binary files /dev/null and b/icon.ico differ
diff --git a/icon.png b/icon.png
index 04970b9..b83e484 100644
Binary files a/icon.png and b/icon.png differ
diff --git a/version.txt b/version.txt
index d3532a1..659914a 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.5.7
+0.5.8