diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3d9976a9..d40a05c7 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -35,7 +35,7 @@ py2exe==0.11.0.1; sys_platform == 'win32'
 # Testing
 pytest==6.2.5
 pytest-cov==3.0.0  # Pytest code coverage support
-coverage[toml]==6.3 # pytest-cov dep. This is here to ensure that it includes TOML support for pyproject.toml configs
+coverage[toml]==6.3.1 # pytest-cov dep. This is here to ensure that it includes TOML support for pyproject.toml configs
 # For manipulating folder permissions and the like.
 pywin32==303; sys_platform == 'win32'