Update requirements.txt

requirements.txt

@@ -1,13 +1,13 @@
-streamlit~=1.23.1
-langchain~=0.0.225
-utils~=1.0.1
-cohere~=4.11.2
-openai~=0.27.8
-pypdf2~=3.0.1
-tiktoken~=0.4.0
-PyPDF2~=3.0.1
-langchain~=0.0.231
-chromadb~=0.3.27
-google-search-results~=2.4.2
-fpdf~=1.7.2
-pypdf~=3.12.1
+streamlit==1.23.1
+langchain==0.0.225
+utils==1.0.1
+cohere==4.11.2
+openai==0.27.8
+pypdf2==3.0.1
+tiktoken==0.4.0
+PyPDF2==3.0.1
+langchain==0.0.231
+chromadb==0.3.27
+google-search-results==2.4.2
+fpdf==1.7.2
+pypdf==3.12.1