Update requirements.txt

requirements.txt

@@ -2,12 +2,14 @@ gradio
 requests
 pandas
 groq
-# --- LangChain Libraries ---
-langchain
-langchain-groq
-langchain-tavily
-# --- Video & Audio Tool Libraries ---
-pytube
-MoviePy
-imageio
-imageio-ffmpeg
+# --- LangChain Libraries (Stable) ---
+langchain==0.3.26
+langchain-groq==0.3.6
+langchain-tavily==0.0.5
+# --- Pinned Tool Libraries for Stability ---
+pytube==15.0.0
+MoviePy==1.0.3
+imageio==2.34.1
+imageio-ffmpeg==0.5.1
+decorator==5.1.1
+tqdm==4.66.4