Specify lower bounds on dependencies (#30)

Author: jarrodmillman

pyproject.toml

@@ -1,26 +1,26 @@
 [build-system]
-requires = ["flit_core >=3.3,<4"]
+requires = ["flit_core >=3.6,<4"]
 build-backend = "flit_core.buildapi"
 
 [project]
 name = "yaml2ics"
-version = "0.1rc1"
+version = "0.1rc2.dev0"
 requires-python = ">=3.8"
-authors = [{name = "The Scientific Python Group"}]
+authors = [{name = "Scientific Python Developers"}]
 readme = "README.md"
 license = {file = "LICENSE"}
 classifiers = ["License :: OSI Approved :: BSD License"]
 dynamic = ["description"]
 
 dependencies = [
     "ics @ git+https://github.com/ics-py/ics-py.git@133a0955f6efbb83ff0eae45ad0bbe6902a8f2f1#egg=ics",
-    "python-dateutil",
-    "pyyaml",
+    "python-dateutil >= 2.8",
+    "pyyaml >= 6",
 ]
 
 [project.optional-dependencies]
-test = ["pytest"]
-lint = ["pre-commit"]
+test = ["pytest >= 7"]
+lint = ["pre-commit >= 2.20"]
 
 [project.scripts]
 yaml2ics = "yaml2ics:main"