diff --git a/poetry.lock b/poetry.lock
index 87fc302..aa7b8ce 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -873,7 +873,7 @@ version = "6.0.2"
 description = "YAML parser and emitter for Python"
 optional = false
 python-versions = ">=3.8"
-groups = ["dev"]
+groups = ["main", "dev"]
 files = [
     {file = "PyYAML-6.0.2-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:0a9a2848a5b7feac301353437eb7d5957887edbf81d56e903999a75a3d743086"},
     {file = "PyYAML-6.0.2-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:29717114e51c84ddfba879543fb232a6ed60086602313ca38cce623c1d62cfbf"},
@@ -994,6 +994,18 @@ files = [
     {file = "tomlkit-0.13.2.tar.gz", hash = "sha256:fff5fe59a87295b278abd31bec92c15d9bc4a06885ab12bcea52c71119392e79"},
 ]
 
+[[package]]
+name = "types-pyyaml"
+version = "6.0.12.20250516"
+description = "Typing stubs for PyYAML"
+optional = false
+python-versions = ">=3.9"
+groups = ["dev"]
+files = [
+    {file = "types_pyyaml-6.0.12.20250516-py3-none-any.whl", hash = "sha256:8478208feaeb53a34cb5d970c56a7cd76b72659442e733e268a94dc72b2d0530"},
+    {file = "types_pyyaml-6.0.12.20250516.tar.gz", hash = "sha256:9f21a70216fc0fa1b216a8176db5f9e0af6eb35d2f2932acb87689d03a5bf6ba"},
+]
+
 [[package]]
 name = "typing-extensions"
 version = "4.13.2"
@@ -1042,4 +1054,4 @@ files = [
 [metadata]
 lock-version = "2.1"
 python-versions = "~3.13"
-content-hash = "c778f03ed4db825597abdfa53d9dc90fed168d978a929383922ab8acabe71f54"
+content-hash = "4450e2a03c5ea31eee3b6ddbb097737a778911e8ea1d4d389229a39596ffa9d9"
diff --git a/pyproject.toml b/pyproject.toml
index d0ad83a..ebf8e93 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,6 +14,7 @@ license = {text = "GPL-3.0-or-later"}
 readme = "README.md"
 requires-python = "~3.13"
 dependencies = [
+    "pyyaml (>=6.0.2,<7.0.0)"
 ]
 
 [tool.poetry.group.dev.dependencies]
@@ -27,6 +28,7 @@ pytest = "^8.3.5"
 pytest-cov = "^6.1.1"
 pytest-mock = "^3.14.0"
 reuse = "^5.0.2"
+types-pyyaml = "^6.0.12.20250516"
 
 [tool.black]
 line-length = 120