updated requirements.txt

requirements.txt

@@ -1,8 +1,8 @@
 -f https://download.pytorch.org/whl/cu113
-torch>=1.11.0+cu113
-datasets>=2.0.0
-transformers>=4.17.0
-tqdm>=4.63.1
-streamlit>=1.8.0
-gdown>=4.4.0
-nltk>=3.7
+torch~=1.11.0
+gdown~=4.3.1
+nltk~=3.7
+streamlit~=1.6.0
+transformers~=4.16.2
+datasets~=2.0.0
+tqdm~=4.63.1