diff --git a/pyproject.toml b/pyproject.toml
index 8acb545..04c2f75 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,6 +14,7 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Operating System :: POSIX",
 ]
+dependencies = ["libbash"]
 
 [project.urls]
 "Homepage" = "https://github.com/binpash/shasta"