Add version ceiling for pydantic

HISTORY.md

@@ -1,7 +1,8 @@
 # erdantic Changelog
 
-## v0.6.0 (Unreleased)
+## v0.5.1 (2023-07-04)
 
+- Changed pydantic dependency to be `< 2`. This will be the final version of erdantic that supports pydantic v1.
 - Changed to pyproject.toml-based build.
 
 ## v0.5.0 (2022-07-29)

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "erdantic"
-version = "0.6.0"
+version = "0.5.1"
 description = "Entity relationship diagrams for Python data model classes like Pydantic."
 readme = "README.md"
 authors = [{ name = "DrivenData", email = "[email protected]" }]
@@ -25,10 +25,10 @@ classifiers = [
 requires-python = ">=3.7"
 dependencies = [
   "importlib_metadata ; python_version < '3.8'",
-  "pydantic",
+  "pydantic < 2",
   "pygraphviz",
   "typer",
-  "typing_extensions>4 ; python_version < '3.8'",
+  "typing_extensions > 4 ; python_version < '3.8'",
 ]
 
 [project.scripts]
@@ -40,7 +40,6 @@ erdantic = "erdantic.cli:app"
 "Bug Tracker" = "https://github.com/drivendataorg/erdantic/issues"
 "Changelog" = "https://erdantic.drivendata.org/stable/changelog/"
 
-
 [tool.black]
 line-length = 99
 include = '\.pyi?$'