Update requirements.txt

requirements.txt

@@ -1,14 +1,14 @@
-# Core app
+# Core Gradio app
 gradio>=4.0.0
 huggingface_hub>=0.23.0
 
-# IndexTTS library (pull straight from GitHub)
+# IndexTTS library (directly from GitHub)
 git+https://github.com/index-tts/index-tts.git
 
-# Torch stack (CPU wheels in Spaces default image)
+# Torch stack (CPU wheels are fine in Spaces default image)
 torch>=2.1.0
 torchaudio>=2.1.0
 
-# Audio I/O helpers often used by TTS libs
-soundfile
-numpy
+# Audio I/O helpers used by TTS libraries
+soundfile>=0.12.1
+numpy>=1.25.2