diff --git a/README.md b/README.md
index 3516bd6..bbaab5f 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ A tool aimed at enhancing the experience when playing the game on linux through
 
 ## Dependencies
 
-- Python >= 3.9 
+- Python >= 3.8.xx (lowest tested)
 
 ## Usage
 
diff --git a/er-patcher b/er-patcher
index 94a577d..f76a640 100755
--- a/er-patcher
+++ b/er-patcher
@@ -15,11 +15,11 @@ if __name__ == "__main__":
     
     parser = argparse.ArgumentParser(description="Patch Elden Ring executable and launch it without EAC.")
     parser.add_argument("-r", "--rate", type=int, default=60, help="Modify the frame rate limit (e.g. 30, 120, 165 or whatever).")
-    parser.add_argument("-u", "--ultrawide", action=argparse.BooleanOptionalAction, help="Removes black bars when using a resolution with an aspect ratio other than 16:9.")
-    parser.add_argument("-v", "--disable-vigniette", action=argparse.BooleanOptionalAction, help="Disables the vigniette overlay.")
-    parser.add_argument("-c", "--disable-ca", action=argparse.BooleanOptionalAction, help="Disables chromatic abberation.")
-    parser.add_argument("-a", "--increase-animation-distance", action=argparse.BooleanOptionalAction, help="Increase animation distance.")
-    parser.add_argument("-f", "--remove-60hz-fullscreen", action=argparse.BooleanOptionalAction, help="Remove 60hz lock in fullscreen.")
+    parser.add_argument("-u", "--ultrawide", action='store_true', help="Removes black bars when using a resolution with an aspect ratio other than 16:9.")
+    parser.add_argument("-v", "--disable-vigniette", action='store_true', help="Disables the vigniette overlay.")
+    parser.add_argument("-c", "--disable-ca", action='store_true', help="Disables chromatic abberation.")
+    parser.add_argument("-a", "--increase-animation-distance", action='store_true', help="Increase animation distance.")
+    parser.add_argument("-f", "--remove-60hz-fullscreen", action='store_true', help="Remove 60hz lock in fullscreen.")
     patch = parser.parse_args(patcher_args)
 
     exe_name = Path("eldenring.exe")
@@ -80,4 +80,4 @@ if __name__ == "__main__":
     subprocess.run(steam_cmd)
 
     os.remove(patched_exe_dir / exe_name)
-    os.rmdir(patched_exe_dir)
+    os.rmdir(patched_exe_dir)
\ No newline at end of file