diff --git a/poetry.lock b/poetry.lock
index 7bdda23..ae99374 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1865,4 +1865,4 @@ train = ["seqeval"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8,<3.12"
-content-hash = "6341c6fd0e53ab71d0410b872aa7f2dc29287e07d1c627d0aeb5d29ab6a0dcaa"
+content-hash = "c7756a0af042cdfd79c0d86c3046eb65ad9bd030cf16276306d310e71b33ed63"
diff --git a/pyproject.toml b/pyproject.toml
index 8ad4a13..19a4681 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,8 @@ toml = ">=0.10.2"
 requests = {version = "^2.27.1", optional = true}
 regex = {version = "!=2022.7.24", optional = true}
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
+cffconvert = "^2.0.0"
 coverage = ">=5.3"
 flake8 = ">=3.8.4"
 isort = ">=5.9.3"
@@ -41,11 +42,8 @@ black = ">=21.10b0"
 lb = ["torch", "transformers", "numpy", "requests"]
 train = ["seqeval"]
 
-[tool.poetry.group.dev.dependencies]
-cffconvert = "^2.0.0"
-
 [build-system]
-requires = ["poetry"]
+requires = ["poetry-core>=1.2.0"]
 build-backend = "poetry.core.masonry.api"
 
 [tool.poetry.scripts]