diff --git a/.github/workflows/constraints.txt b/.github/workflows/constraints.txt
index 6757753..b713c57 100644
--- a/.github/workflows/constraints.txt
+++ b/.github/workflows/constraints.txt
@@ -1,5 +1,5 @@
 pip==24.1.2
-poetry==1.8.3
+poetry @ git+https://github.com/radoering/poetry.git@pep621-support
 poetry-dynamic-versioning==1.4.0
 nox==2024.4.15
 nox-poetry==1.0.3
diff --git a/poetry.lock b/poetry.lock
index 1188d2a..e256055 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.8.3 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.9.0.dev0 and should not be changed by hand.
 
 [[package]]
 name = "appdirs"
@@ -1403,4 +1403,4 @@ test = ["big-O", "importlib-resources", "jaraco.functools", "jaraco.itertools",
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8"
-content-hash = "4e513adddaafe865ed9975f656f743866f2b9fbc1ec44675f7620c08b57ee48f"
+content-hash = "df17ae5150c6ed1750acb11fef4049448351ccd65dddb4dde61d6a290bcf9f31"
diff --git a/pyproject.toml b/pyproject.toml
index ee039f7..b13e825 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,18 +1,24 @@
 [build-system]
 build-backend = "poetry_dynamic_versioning.backend"
 requires = [
-  "poetry-core==1.9",
+  "poetry-core @ git+https://github.com/radoering/poetry-core.git@pep621-support",
   "poetry-dynamic-versioning",
 ]
 
-[tool.poetry]
+[project]
 name = "tap-betterstack"
-version = "0.0.0"
 description = "`tap-betterstack` is a Singer tap for Better Stack, built with the Meltano SDK for Singer Taps."
-authors = [
-  "Edgar Ramírez-Mondragón <edgarrm358@gmail.com>",
+readme = "README.md"
+keywords = [
+  "Better Stack",
+  "ELT",
+  "singer.io",
 ]
+license.file = "LICENSE"
+authors = [ { name = "Edgar Ramírez-Mondragón", email = "edgarrm358@gmail.com" } ]
+requires-python = ">=3.8"
 classifiers = [
+  "Programming Language :: Python :: 3 :: Only",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
@@ -20,31 +26,27 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
 ]
-keywords = [
-  "ELT",
-  "singer.io",
-  "Better Stack",
+dynamic = [
+  "version",
 ]
-license = "Apache-2.0"
-readme = "README.md"
-homepage = "https://github.com/edgarrmondragon/tap-betterstack"
-repository = "https://github.com/edgarrmondragon/tap-betterstack"
-documentation = "https://github.com/edgarrmondragon/tap-betterstack#readme"
+dependencies = [
+  "cffi>=1.17.0rc1; python_version>='3.13'",
+  "singer-sdk~=0.38.0",
+]
+urls.Documentation = "https://github.com/edgarrmondragon/tap-betterstack#readme"
+urls.Homepage = "https://github.com/edgarrmondragon/tap-betterstack"
+urls.Repository = "https://github.com/edgarrmondragon/tap-betterstack"
+scripts."tap-betterstack" = "tap_betterstack.tap:TapBetterStack.cli"
 
-[tool.poetry.dependencies]
-python = ">=3.8"
-cffi = { version = ">=1.17.0rc1", python = ">=3.13" }
-singer-sdk = "~=0.38.0"
+[tool.poetry]
+name = "tap-betterstack"
+version = "0.0.0"
 
 [tool.poetry.group.dev.dependencies]
 singer-sdk = { version = "*", extras = [
   "testing",
 ] }
 
-[tool.poetry.scripts]
-# CLI declaration
-"tap-betterstack" = "tap_betterstack.tap:TapBetterStack.cli"
-
 [tool.poetry-dynamic-versioning]
 enable = true
 format-jinja = """