diff --git a/pyproject.toml b/pyproject.toml
index 5a129be..0c7eee3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ version = "0.4.0"
 readme = "README.md"
 
 [tool.poetry.dependencies]
-python = "^3.6"
+python = "^3.6.15"
 typer = "^0.3.2"
 typing-extensions = "^3.7.4;python<3.8"