diff --git a/docker-compose.yml b/docker-compose.yml
index 3044ce1..b60367e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,8 +1,8 @@
 services:
   playground:
     build:
-      context: .
-      dockerfile: docker/playground/Dockerfile
+      context: ./docker/playground
+      dockerfile: Dockerfile
     ports:
       - "${WEB_PORT:-8080}:80"
     volumes:
diff --git a/docker/playground/Dockerfile b/docker/playground/Dockerfile
index 864156f..ecf6833 100644
--- a/docker/playground/Dockerfile
+++ b/docker/playground/Dockerfile
@@ -4,3 +4,10 @@
   apt-get install -y libonig-dev
 
 RUN docker-php-ext-install mysqli pdo_mysql mbstring
+
+# Enable Apache headers module
+RUN a2enmod headers
+
+# Add custom Apache configuration for UTF-8 charset
+COPY apache-charset.conf /etc/apache2/conf-available/charset.conf
+RUN a2enconf charset
diff --git a/docker/playground/apache-charset.conf b/docker/playground/apache-charset.conf
new file mode 100644
index 0000000..28ca6f8
--- /dev/null
+++ b/docker/playground/apache-charset.conf
@@ -0,0 +1 @@
+AddDefaultCharset UTF-8