diff --git a/02-‐-Contributions.md b/02-‐-Contributions.md
index ad8bdcf..54e7efd 100644
--- a/02-‐-Contributions.md
+++ b/02-‐-Contributions.md
@@ -12,7 +12,7 @@ In any case, before submitting a PR, please run test locally to validate your PR
 
 Install required packages, e.g. on Fedora Linux
 
-```
+```bash
 yum install python3-flake8 python3-isort python3-mypy python3-pytest python3-pytest-isort python3-typeguard
 ```
 
@@ -20,7 +20,7 @@ yum install python3-flake8 python3-isort python3-mypy python3-pytest python3-pyt
 
 #### Run "flake8"
 
-```
+```bash
 flake8
 ...
 ```
@@ -28,7 +28,7 @@ No error should be reported!
 
 #### Run "isort"
 
-```
+```bash
 isort --check --diff .
 ...
 ```
@@ -36,7 +36,7 @@ No error should be reported!
 
 #### Run "mypy"
 
-```
+```bash
 python -c 'import importlib.util, subprocess, sys; importlib.util.find_spec("mypy") and sys.exit(subprocess.run(["mypy", "."]).returncode)'
 ...
 ```
@@ -44,7 +44,7 @@ No error should be reported!
 
 #### Run "pytest"
 
-```
+```bash
 python3 setup.py build || exit 1
 python3 setup.py install --root dist || exit 1
 pytest