diff --git a/symfony/monolog-bundle/3.1/config/packages/dev/monolog.php b/symfony/monolog-bundle/3.1/config/packages/dev/monolog.php
deleted file mode 100644
index 1e116e72..00000000
--- a/symfony/monolog-bundle/3.1/config/packages/dev/monolog.php
+++ /dev/null
@@ -1,36 +0,0 @@
-<?php
-
-use Symfony\Component\Config\Resource\ClassExistenceResource;
-use Symfony\Component\Console\Application;
-
-$handlers = [
-    'main' => [
-        'type' => 'stream',
-        'path' => '%kernel.logs_dir%/%kernel.environment%.log',
-        'level' => 'debug',
-        'channels' => ['!event'],
-    ],
-    // uncomment to get logging in your browser
-    // you may have to allow bigger header sizes in your Web server configuration
-    //'firephp' => [
-    //    'type' => 'firephp',
-    //    'level' => 'info',
-    //],
-    //'chromephp' => [
-    //    'type' => 'chromephp',
-    //    'level' => 'info',
-    //],
-];
-
-$container->addResource(new ClassExistenceResource(Application::class));
-if (class_exists(Application::class)) {
-    $handlers['console'] = [
-        'type' => 'console',
-        'process_psr_3_messages' => false,
-        'channels' => ['!event', '!doctrine', '!console'],
-    ];
-}
-
-$container->loadFromExtension('monolog', [
-    'handlers' => $handlers,
-]);
diff --git a/symfony/monolog-bundle/3.1/config/packages/dev/monolog.yaml b/symfony/monolog-bundle/3.1/config/packages/dev/monolog.yaml
new file mode 100644
index 00000000..36625928
--- /dev/null
+++ b/symfony/monolog-bundle/3.1/config/packages/dev/monolog.yaml
@@ -0,0 +1,19 @@
+monolog:
+    handlers:
+        main:
+            type: stream
+            path: "%kernel.logs_dir%/%kernel.environment%.log"
+            level: debug
+            channels: ["!event"]
+        # uncomment to get logging in your browser
+        # you may have to allow bigger header sizes in your Web server configuration
+        #firephp:
+        #    type: firephp
+        #    level: info
+        #chromephp:
+        #    type: chromephp
+        #    level: info
+        console:
+            type:   console
+            process_psr_3_messages: false
+            channels: ["!event", "!doctrine", "!console"]
diff --git a/symfony/monolog-bundle/3.1/config/packages/prod/monolog.php b/symfony/monolog-bundle/3.1/config/packages/prod/monolog.php
deleted file mode 100644
index f182890c..00000000
--- a/symfony/monolog-bundle/3.1/config/packages/prod/monolog.php
+++ /dev/null
@@ -1,30 +0,0 @@
-<?php
-
-use Symfony\Component\Config\Resource\ClassExistenceResource;
-use Symfony\Component\Console\Application;
-
-$handlers = [
-    'main' => [
-        'type' => 'fingers_crossed',
-        'action_level' => 'error',
-        'handler' => 'nested',
-    ],
-    'nested' => [
-        'type' => 'stream',
-        'path' => '%kernel.logs_dir%/%kernel.environment%.log',
-        'level' => 'debug',
-    ],
-];
-
-$container->addResource(new ClassExistenceResource(Application::class));
-if (class_exists(Application::class)) {
-    $handlers['console'] = [
-        'type' => 'console',
-        'process_psr_3_messages' => false,
-        'channels' => ['!event', '!doctrine'],
-    ];
-}
-
-$container->loadFromExtension('monolog', [
-    'handlers' => $handlers,
-]);
diff --git a/symfony/monolog-bundle/3.1/config/packages/prod/monolog.yaml b/symfony/monolog-bundle/3.1/config/packages/prod/monolog.yaml
new file mode 100644
index 00000000..07bee353
--- /dev/null
+++ b/symfony/monolog-bundle/3.1/config/packages/prod/monolog.yaml
@@ -0,0 +1,14 @@
+monolog:
+    handlers:
+        main:
+            type: fingers_crossed
+            action_level: error
+            handler: nested
+        nested:
+            type: stream
+            path: "%kernel.logs_dir%/%kernel.environment%.log"
+            level: debug
+        console:
+            type:   console
+            process_psr_3_messages: false
+            channels: ["!event", "!doctrine"]