diff --git a/GitUpdateChecker.exe b/GitUpdateChecker.exe
index 0add629..94ea8f8 100644
Binary files a/GitUpdateChecker.exe and b/GitUpdateChecker.exe differ
diff --git a/_internal/base_library.zip b/_internal/base_library.zip
index 57522b5..0ddb245 100644
Binary files a/_internal/base_library.zip and b/_internal/base_library.zip differ
diff --git a/_internal/icon_small.png b/_internal/icon_small.png
new file mode 100644
index 0000000..da1b4c1
Binary files /dev/null and b/_internal/icon_small.png differ
diff --git a/build.bat b/build.bat
index 66d25c2..dbd8e88 100644
--- a/build.bat
+++ b/build.bat
@@ -19,13 +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 [*] Conversion icon.png -> icon.ico + icon_small.png (32x32)...
+python -c "from PIL import Image; img = Image.open('icon.png').convert('RGBA'); img.save('icon.ico', format='ICO', sizes=[(256,256),(128,128),(64,64),(32,32),(16,16)]); thumb = img.copy(); thumb.thumbnail((32,32), Image.LANCZOS); thumb.save('icon_small.png')"
 
 echo [*] Compilation en cours...
 echo.
 
-pyinstaller --onedir --noconsole --name "GitUpdateChecker" --icon=icon.ico --add-data "icon.png:." -y git_updater.py
+pyinstaller --onedir --noconsole --name "GitUpdateChecker" --icon=icon.ico --add-data "icon.png:." --add-data "icon_small.png:." -y git_updater.py
 
 echo.
 if exist "dist\GitUpdateChecker\GitUpdateChecker.exe" (
diff --git a/git_updater.py b/git_updater.py
index 4d0f5b0..bf6f221 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 = "0.6.5"
+VERSION = "0.6.6"
 
 import subprocess
 import sys
@@ -485,13 +485,13 @@ def do_restore(local_path):
 
 class App(tk.Tk):
     @staticmethod
-    def _find_icon():
-        """Cherche icon.png : d'abord à côté de l'exe, sinon dans _internal (bundle)."""
-        p = get_exe_dir() / "icon.png"
+    def _find_icon(filename="icon.png"):
+        """Cherche un fichier icône : d'abord à côté de l'exe, sinon dans _internal (bundle)."""
+        p = get_exe_dir() / filename
         if p.exists():
             return p
         if getattr(sys, "frozen", False) and hasattr(sys, "_MEIPASS"):
-            p = Path(sys._MEIPASS) / "icon.png"
+            p = Path(sys._MEIPASS) / filename
             if p.exists():
                 return p
         return None
@@ -558,15 +558,12 @@ class App(tk.Tk):
         header = ttk.Frame(self)
         header.pack(fill="x", padx=15, pady=(15, 5))
 
-        # Icône dans le coin haut gauche (32x32, ratio conservé)
-        if self._app_icon:
+        # Icône dans le coin haut gauche (icon_small.png pré-générée à 32x32)
+        small_path = self._find_icon("icon_small.png")
+        if small_path:
             try:
-                w, h = self._app_icon.width(), self._app_icon.height()
-                # Calculer un diviseur commun pour garder le ratio
-                divisor = max(1, max(w, h) // 32)
-                icon_small = tk.PhotoImage(file=str(self._find_icon())).subsample(divisor, divisor)
-                self._icon_small = icon_small
-                tk.Label(header, image=icon_small, bg=bg, bd=0).pack(side="left", padx=(0, 8))
+                self._icon_small = tk.PhotoImage(file=str(small_path))
+                tk.Label(header, image=self._icon_small, bg=bg, bd=0).pack(side="left", padx=(0, 8))
             except Exception as e:
                 log.warning(f"Icone header: {e}")
 
diff --git a/icon_small.png b/icon_small.png
new file mode 100644
index 0000000..da1b4c1
Binary files /dev/null and b/icon_small.png differ
diff --git a/version.txt b/version.txt
index ef5e445..05e8a45 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.6.5
+0.6.6