diff --git a/setup.py b/setup.py
index 42a29bf..61fb84a 100644
--- a/setup.py
+++ b/setup.py
@@ -39,7 +39,8 @@ def get_all_dependencies():
         # Custom version of python-ldap without SASL requirements
         "python-ldap @ git+https://github.itap.purdue.edu/ECN/python-ldap/@python-ldap-3.3.1",
         "easyad",
-        "dataclasses"
+        "dataclasses",
+        "pyparsing"
     ],
     extras_require={
         "dev": conditional_dependencies["dev"],