diff --git a/.github/workflows/code-style.yml b/.github/workflows/code-style.yml
index cd20188..d37b2ec 100644
--- a/.github/workflows/code-style.yml
+++ b/.github/workflows/code-style.yml
@@ -21,7 +21,7 @@ jobs:
           tools: composer
           # Specific versions of extensions available on PECL can be set up by suffixing the extension's name with the version.
           # https://github.com/shivammathur/setup-php?tab=readme-ov-file#heavy_plus_sign-php-extension-support
-          extensions: apcu, redis-5.3.7, memcached, mongodb
+          extensions: apcu, redis-5.3.7, memcached, mongodb-1.21.1
         env:
           fail-fast: true
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 08525c4..1623754 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -50,7 +50,7 @@ jobs:
           tools: composer
           # Specific versions of extensions available on PECL can be set up by suffixing the extension's name with the version.
           # https://github.com/shivammathur/setup-php?tab=readme-ov-file#heavy_plus_sign-php-extension-support
-          extensions: apcu, redis-5.3.7, memcached, mongodb-1.21.0
+          extensions: apcu, redis-5.3.7, memcached, mongodb-1.21.1
           ini-values: apc.enable_cli=1
           coverage: xdebug
         env:
diff --git a/README.md b/README.md
index 00bf461..9b5e9d4 100644
--- a/README.md
+++ b/README.md
@@ -501,12 +501,6 @@ $ganeshaClient->request('GET', 'http://api.example.com/awesome_resource');
 You can also specify `$service` via a option passed to client, or request header. If both are specified, the option value takes precedence.
 
 ```php
-// via constructor argument
-$ganeshaClient = new GaneshaHttpClient($client, $ganesha, [
-    // 'ganesha.service_name' is defined as ServiceNameExtractor::OPTION_KEY
-    'ganesha.service_name' => 'specified_service_name',
-]);
-
 // via request method argument
 $ganeshaClient->request(
     'GET',
diff --git a/examples/client/Dockerfile b/examples/client/Dockerfile
index 093628b..faad0ba 100644
--- a/examples/client/Dockerfile
+++ b/examples/client/Dockerfile
@@ -5,6 +5,7 @@ COPY install_composer.sh /tmp/
 RUN apt-get update \
  && apt-get install --no-install-recommends -y git \
  && apt-get install --no-install-recommends -y libmemcached-dev \
+ && apt-get install --no-install-recommends -y libssl-dev \
  && apt-get install --no-install-recommends -y zlib1g-dev \
  && apt-get install --no-install-recommends -y unzip \
  && apt-get install --no-install-recommends -y libzip-dev \
@@ -17,7 +18,7 @@ RUN apt-get update \
  && echo 'extension=redis.so' >> /usr/local/etc/php/php.ini \
  && yes '' | pecl install xdebug-3.1.5 \
  && echo 'zend_extension=xdebug.so' >> /usr/local/etc/php/php.ini \
- && yes '' | pecl install mongodb \
+ && yes '' | pecl install mongodb-1.21.1 \
  && echo 'extension=mongodb.so' >> /usr/local/etc/php/php.ini \
  && yes '' | pecl install apcu \
  && echo 'extension=apcu.so' >> /usr/local/etc/php/php.ini \