diff --git a/CONTRIBUTIONS.md b/CONTRIBUTIONS.md
index 3654f9b..2f38bd1 100644
--- a/CONTRIBUTIONS.md
+++ b/CONTRIBUTIONS.md
@@ -4,7 +4,7 @@
 
 ## Coding Standard
 
-Vela is written using Python 3.6 language constructs in order to aid
+Vela is written using Python 3.7 language constructs in order to aid
 compatibility with other tools.  All code must also be run through the
 formatting and linting tools described in [Vela Testing](TESTING.md)
 
diff --git a/TESTING.md b/TESTING.md
index c5953d9..118d746 100644
--- a/TESTING.md
+++ b/TESTING.md
@@ -7,9 +7,11 @@
 Python files (excluding the directories `ethosu/vela/tflite/` and
 `ethosu/vela/ethos_u55_regs` because they contain auto-generated code):
 
+* mypy (code linter)
 * reorder-python-import (code formatter)
 * black (code formatter)
 * flake8 (code linter)
+* pylint (code linter)
 
 These tools are run using the [pre-commit](https://pre-commit.com/) framework.
 This is also used to run the following test and coverage tools:
@@ -28,6 +30,16 @@
 
 The remaining tools will all be installed automatically upon first use.
 
+If a virtual environment is not used, the packages can instead be installed through:
+
+```bash
+pip install pre-commit
+...
+pip install pytest
+...
+pip install pytest-cov
+```
+
 ### Add pre-commit hook (Automatically running the tools)
 
 To support code development all the above tools can be configured to run
@@ -49,12 +61,16 @@
 pre-commit framework commands:
 
 ```bash
+$ pre-commit run mypy --all-files
+...
 $ pre-commit run reorder-python-imports --all-files
 ...
 $ pre-commit run black --all-files
 ...
 $ pre-commit run flake8 --all-files
 ...
+$ pre-commit run pylint --all-files
+...
 $ pre-commit run pytest
 ...
 $ pre-commit run pytest-cov --hook-stage push
@@ -65,8 +81,10 @@
 
 ```bash
 $ pre-commit run --all-files
+mypy.....................................................................Passed
 Reorder python imports...................................................Passed
 black....................................................................Passed
 flake8...................................................................Passed
+pylint...................................................................Passed
 pytest...................................................................Passed
 ```