diff --git a/poetry.lock b/poetry.lock
index 9fa822c..8adf1b7 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -149,18 +149,21 @@ smmap = ">=3.0.1,<5"
 
 [[package]]
 name = "gitpython"
-version = "3.1.34"
+version = "3.1.37"
 description = "GitPython is a Python library used to interact with Git repositories"
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "GitPython-3.1.34-py3-none-any.whl", hash = "sha256:5d3802b98a3bae1c2b8ae0e1ff2e4aa16bcdf02c145da34d092324f599f01395"},
-    {file = "GitPython-3.1.34.tar.gz", hash = "sha256:85f7d365d1f6bf677ae51039c1ef67ca59091c7ebd5a3509aa399d4eda02d6dd"},
+    {file = "GitPython-3.1.37-py3-none-any.whl", hash = "sha256:5f4c4187de49616d710a77e98ddf17b4782060a1788df441846bddefbb89ab33"},
+    {file = "GitPython-3.1.37.tar.gz", hash = "sha256:f9b9ddc0761c125d5780eab2d64be4873fc6817c2899cbcb34b02344bdc7bc54"},
 ]
 
 [package.dependencies]
 gitdb = ">=4.0.1,<5"
 
+[package.extras]
+test = ["black", "coverage[toml]", "ddt (>=1.1.1,!=1.4.3)", "mypy", "pre-commit", "pytest", "pytest-cov", "pytest-sugar"]
+
 [[package]]
 name = "importlib-metadata"
 version = "4.5.0"
@@ -823,4 +826,4 @@ testing = ["func-timeout", "jaraco.itertools", "pytest (>=4.6)", "pytest-black (
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8"
-content-hash = "336466c3a3e0f920ebe33baa057d18e997cabe860815655798bfe2340e74c24c"
+content-hash = "9a5242f5cd0a311855d8ea921be3d2964b3e4b2422192214e1b096da6d0f11d3"
diff --git a/pyproject.toml b/pyproject.toml
index f49eabc..c2ff57a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ black = "^21.7b0"
 mkdocs = "^1.4.3"
 mkdocs-material = "^7.3.6"
 mdx-truly-sane-lists = "^1.3"
-GitPython = "^3.1.34"
+GitPython = "^3.1.37"
 mike = "^1.1.2"
 pep8-naming = "^0.12.1"
 invoke = "^1.5.0"