diff --git a/setup.py b/setup.py
index 6f16301..6977f41 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@ REQUIRES_PYTHON = ">=3.6.0"
 VERSION = "0.6.0"
 
 # What packages are required for this module to be executed?
-REQUIRED = ["click", "delegator.py", "pygments", "networkx", "orderedset"]
+REQUIRED = ["click", "delegator.py", "pygments", "networkx"]
 
 # What packages are optional?
 EXTRAS = {