diff --git a/poetry.lock b/poetry.lock
index 87172ab..4371a9d 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -400,7 +400,7 @@ name = "pygments"
 version = "2.14.0"
 description = "Pygments is a syntax highlighting package written in Python."
 category = "main"
-optional = true
+optional = false
 python-versions = ">=3.6"
 
 [package.extras]
@@ -839,7 +839,7 @@ docs = ["sphinx-rtd-theme", "sphinxcontrib-napoleon"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.9,<3.11"
-content-hash = "a5ae68056630da895341960a523160e38833a47f86cee806493576b1c621eb24"
+content-hash = "45e19dfa0f1935a1bd3f3a5f6119adaa78eecdfb8c8e738bb3c1c4d36d59de7d"
 
 [metadata.files]
 alabaster = [
diff --git a/pyproject.toml b/pyproject.toml
index 324e918..15acf46 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,6 +28,7 @@ mypy = "^0.991"
 types-pyyaml = "^6.0.12.4"
 pydocstyle = "^6.3.0"
 restructuredtext-lint = "^1.4.0"
+pygments = "^2.14.0"
 
 [tool.poetry.extras]
 docs = ["sphinx-rtd-theme", "sphinxcontrib-napoleon"]