diff --git a/dev_gpt/constants.py b/dev_gpt/constants.py
index b50cef2..6888758 100644
--- a/dev_gpt/constants.py
+++ b/dev_gpt/constants.py
@@ -43,6 +43,7 @@ DEMO_TOKEN = '45372338e04f5a41af949024db929d46'
 BLACKLISTED_PACKAGES = [
     'moderngl', 'pyopengl', 'pyglet', 'pythreejs', 'panda3d',  # because they need a screen,
     'tika',  # because it needs java
+    'clearbit'  # because of installation issues on latest version
 ]
 UNNECESSARY_PACKAGES = [
     'fastapi', 'uvicorn', 'starlette'  # because the wrappers are used instead