diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..d23b55d
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,2 @@
+.git
+vendor
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..f0aaaf7
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "intelephense.environment.phpVersion": "8.1.0"
+}
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 95d7801..9ebdf8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Release Notes
 
+## v4.1.0 (2025-06-18)
+💻 Added Docker to the project
+
 ## v4.0.1 (2025-01-18)
 - 🐛 Bug fix with incorrect days in a year
 
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..5efcad7
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,24 @@
+FROM php:8.1-cli
+
+# unzip and git are needed for composer to run
+RUN apt-get update && apt-get install -y \
+    unzip \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Composer binary
+COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
+
+WORKDIR /app
+
+# Copy composer files first for better cache usage
+COPY composer.json composer.lock* ./
+
+# Install all the dependencies and clear cache
+RUN composer install --no-interaction --prefer-dist --no-progress && \
+    composer clear-cache
+
+# Copy the rest of the application
+COPY . .
+
+ENTRYPOINT [ "bash" ]
\ No newline at end of file
diff --git a/README.md b/README.md
index 9eb1f71..feffe5a 100644
--- a/README.md
+++ b/README.md
@@ -27,3 +27,20 @@ composer require serhii/ago
 
 ## License
 The Ago project is licensed under the [MIT License](https://github.com/php-ago/ago/blob/master/LICENSE)
+
+## Development
+### Without Docker
+You'll need to have Composer and PHP installed on your machine
+
+### Docker
+#### Build an image
+To build an image, navigate to the root of project that contains `Dockerfile` and run this command:
+```bash
+docker compose build app
+```
+
+#### Run the container
+To run the container, navigate to the root of project that contains `Dockerfile` and run this command:
+```bash
+docker compose run --rm app
+```
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..08b0631
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,13 @@
+name: php-serhii-ago
+
+services:
+  app:
+    build:
+      context: .
+    image: php-serhii-ago
+    volumes:
+      - .:/app
+    environment:
+      - TERM=xterm-256color
+    tty: true
+    stdin_open: true