diff --git a/solutions/convert_temperature.py b/solutions/convert_temperature.py
index 0990dd0e0..87b44dea3 100644
--- a/solutions/convert_temperature.py
+++ b/solutions/convert_temperature.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
 """
 This module provides functionality to convert temperatures from Celsius
 to Fahrenheit and Kelvin.
diff --git a/solutions/steps_to_floor.py b/solutions/steps_to_floor.py
index 2f39bcf2f..6e98b3270 100644
--- a/solutions/steps_to_floor.py
+++ b/solutions/steps_to_floor.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
 """
 Building Steps Calculator
 
diff --git a/solutions/tests/test_convert_temperature.py b/solutions/tests/test_convert_temperature.py
index 380999112..c5737129e 100644
--- a/solutions/tests/test_convert_temperature.py
+++ b/solutions/tests/test_convert_temperature.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
 """
 Unit tests for the convert_temperature function.
 """
diff --git a/solutions/tests/test_steps_to_floor.py b/solutions/tests/test_steps_to_floor.py
index dab21ad96..f6f35b63c 100644
--- a/solutions/tests/test_steps_to_floor.py
+++ b/solutions/tests/test_steps_to_floor.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
 """
 Unit tests for the steps_to_floor_core function, which calculates the number
 of steps required to reach a specified floor.