Update pyproject.toml

pyproject.toml

@@ -10,7 +10,7 @@ authors = [
 readme = "README.md"
 
 [tool.poetry.dependencies]
-python = ">=3.9"
+python = "^3.9"
 numpy = ">=1.19.0"
 scipy = ">=1.8.0"
 tensorflow = { version = ">=2.16.1", optional = true }
@@ -23,16 +23,15 @@ jaxlib = { version = ">=0.4.27", optional = true }
 all = ["matplotlib", "tensorflow", "tensorflow-macos", "jax", "jaxlib"]
 
 [tool.poetry.group.dev.dependencies]
-pytest = "7.4.4"
-pylint = "2.15.4"
+pytest = "^7.4.4"
+pylint = "^2.15.4"
 mypy = "^1.8.0"
-isort = "5.10.1"
-darglint = "1.8.1"
-black = "24.1.1"
-nbval = "0.10.0"
-pytest-cov = "4.1.0"
-pytest-mpl = "0.16.1"
-pdoc = "12.1.0"
+isort = "^5.10.1"
+darglint = "^1.8.1"
+black = "^24.1.1"
+nbval = "^0.11.0"
+pytest-cov = "^4.1.0"
+pytest-mpl = "^0.16.1"
 
 [tool.mypy]
 python_version = "3.9"