diff --git a/pyproject.toml b/pyproject.toml
index bdba9e4..5b68bbf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ classifiers = [
     "Topic :: Software Development :: Libraries :: Python Modules",
     "License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)",
 ]
-dependencies = ["psycopg2-binary==2.9.9", "tabulate==0.9.0"]
+dependencies = ["psycopg2-binary>=2.9.9", "tabulate==0.9.0", "pyyaml==6.0.1"]
 keywords = ["postgresql", "postgres", "dbms", "etl", "upsert", "database"]
 
 [project.scripts]