diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ae26733..3ba489e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -23,7 +23,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install Poetry
-        run: pip install poetry --pre
+        run: pip install poetry
       - name: Install dependencies
         run: poetry install
       - name: Run tests
diff --git a/fastapi_health/__init__.py b/fastapi_health/__init__.py
index 6f0773d..0666c46 100644
--- a/fastapi_health/__init__.py
+++ b/fastapi_health/__init__.py
@@ -1,5 +1,3 @@
 from fastapi_health.route import health
 
-__version__ = "0.4.0"
-
 __all__ = ["health"]
diff --git a/pyproject.toml b/pyproject.toml
index dca3eac..66b1f39 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "fastapi-health"
-version = "0"
+version = "0.4.0"
 description = "Heath check on FastAPI applications."
 authors = ["Marcelo Trylesinski <marcelotryle@gmail.com>"]
 readme = "README.md"
@@ -40,6 +40,3 @@ requests = "^2.25.1"
 [build-system]
 requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"
-
-[tool.poetry-version-plugin]
-source = "init"