diff --git a/chemcrow/version.py b/chemcrow/version.py
index 771bc6e..91c67cc 100644
--- a/chemcrow/version.py
+++ b/chemcrow/version.py
@@ -1 +1 @@
-__version__ = "0.3.9"
+__version__ = "0.3.11"
diff --git a/setup.py b/setup.py
index a39893b..015e6ba 100644
--- a/setup.py
+++ b/setup.py
@@ -25,11 +25,11 @@
         "molbloom",
         "paper-qa==1.1.1",
         "google-search-results",
-        "langchain==0.0.234",
+        "langchain>=0.0.234",
         "nest_asyncio",
         "tiktoken",
         "rmrkl",
-        "paper-scraper@git+https://github.com/blackadad/paper-scraper.git",
+        # "paper-scraper@git+https://github.com/blackadad/paper-scraper.git",
         "streamlit",
         "rxn4chemistry",
         "duckduckgo-search",
@@ -39,7 +39,9 @@
     long_description=long_description,
     long_description_content_type="text/markdown",
     classifiers=[
-        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
     ],