diff --git a/config/packages/demo/monolog.yaml b/config/packages/demo/monolog.yaml
deleted file mode 100644
index 55f975ac..00000000
--- a/config/packages/demo/monolog.yaml
+++ /dev/null
@@ -1,25 +0,0 @@
-monolog:
-    handlers:
-        main:
-            type: fingers_crossed
-            action_level: error
-            handler: nested
-            excluded_http_codes: [404, 405]
-            include_stacktraces: true
-        nested:
-            type: stream
-            path: "php://stderr"
-            level: debug
-            include_stacktraces: true
-        console:
-            type: console
-            process_psr_3_messages: false
-            channels: ["!event", "!doctrine"]
-        deprecation:
-            type: stream
-            path: "%kernel.logs_dir%/%kernel.environment%.deprecations.log"
-        deprecation_filter:
-            type: filter
-            handler: deprecation
-            max_level: info
-            channels: ["php"]
diff --git a/config/packages/dev/monolog.yaml b/config/packages/dev/monolog.yaml
deleted file mode 100644
index b1998da1..00000000
--- a/config/packages/dev/monolog.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-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/config/packages/monolog.yaml b/config/packages/monolog.yaml
new file mode 100644
index 00000000..f72d93f6
--- /dev/null
+++ b/config/packages/monolog.yaml
@@ -0,0 +1,84 @@
+monolog:
+    channels:
+        - deprecation # Deprecations are logged in the dedicated "deprecation" channel when it exists
+
+when@dev:
+    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"]
+
+when@test:
+    monolog:
+        handlers:
+            main:
+                type: fingers_crossed
+                action_level: error
+                handler: nested
+                excluded_http_codes: [404, 405]
+                channels: ["!event"]
+            nested:
+                type: stream
+                path: "%kernel.logs_dir%/%kernel.environment%.log"
+                level: debug
+
+when@prod:
+    monolog:
+        handlers:
+            main:
+                type: fingers_crossed
+                action_level: error
+                handler: nested
+                excluded_http_codes: [404, 405]
+                buffer_size: 50 # How many messages should be saved? Prevent memory leaks
+            nested:
+                type: stream
+                path: "%kernel.logs_dir%/%kernel.environment%.log"
+                level: debug
+                formatter: monolog.formatter.json
+            console:
+                type: console
+                process_psr_3_messages: false
+                channels: ["!event", "!doctrine"]
+            deprecation:
+                type: stream
+                channels: [deprecation]
+                path: "%kernel.logs_dir%/%kernel.environment%_deprecations.log"
+
+when@demo:
+    monolog:
+        handlers:
+            main:
+                type: fingers_crossed
+                action_level: error
+                handler: nested
+                excluded_http_codes: [404, 405]
+                buffer_size: 50 # How many messages should be saved? Prevent memory leaks
+            nested:
+                type: stream
+                path: "php://stderr"
+                level: debug
+                formatter: monolog.formatter.json
+            console:
+                type: console
+                process_psr_3_messages: false
+                channels: ["!event", "!doctrine"]
+            deprecation:
+                type: stream
+                channels: [deprecation]
+                path: "%kernel.logs_dir%/%kernel.environment%_deprecations.log"
diff --git a/config/packages/prod/deprecations.yaml b/config/packages/prod/deprecations.yaml
deleted file mode 100644
index 920a0619..00000000
--- a/config/packages/prod/deprecations.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-# As of Symfony 5.1, deprecations are logged in the dedicated "deprecation" channel when it exists
-#monolog:
-#    channels: [deprecation]
-#    handlers:
-#        deprecation:
-#            type: stream
-#            channels: [deprecation]
-#            path: "%kernel.logs_dir%/%kernel.environment%.deprecations.log"
diff --git a/config/packages/prod/monolog.yaml b/config/packages/prod/monolog.yaml
deleted file mode 100644
index bfe69c01..00000000
--- a/config/packages/prod/monolog.yaml
+++ /dev/null
@@ -1,16 +0,0 @@
-monolog:
-    handlers:
-        main:
-            type: fingers_crossed
-            action_level: error
-            handler: nested
-            excluded_http_codes: [404, 405]
-            buffer_size: 50 # How many messages should be saved? Prevent memory leaks
-        nested:
-            type: stream
-            path: "%kernel.logs_dir%/%kernel.environment%.log"
-            level: debug
-        console:
-            type: console
-            process_psr_3_messages: false
-            channels: ["!event", "!doctrine"]
diff --git a/config/packages/test/monolog.yaml b/config/packages/test/monolog.yaml
deleted file mode 100644
index fc40641d..00000000
--- a/config/packages/test/monolog.yaml
+++ /dev/null
@@ -1,12 +0,0 @@
-monolog:
-    handlers:
-        main:
-            type: fingers_crossed
-            action_level: error
-            handler: nested
-            excluded_http_codes: [404, 405]
-            channels: ["!event"]
-        nested:
-            type: stream
-            path: "%kernel.logs_dir%/%kernel.environment%.log"
-            level: debug
diff --git a/symfony.lock b/symfony.lock
index cfbef423..fe990557 100644
--- a/symfony.lock
+++ b/symfony.lock
@@ -593,13 +593,10 @@
             "repo": "github.com/symfony/recipes",
             "branch": "master",
             "version": "3.7",
-            "ref": "a7bace7dbc5a7ed5608dbe2165e0774c87175fe6"
+            "ref": "213676c4ec929f046dfde5ea8e97625b81bc0578"
         },
         "files": [
-            "./config/packages/dev/monolog.yaml",
-            "./config/packages/prod/deprecations.yaml",
-            "./config/packages/prod/monolog.yaml",
-            "./config/packages/test/monolog.yaml"
+            "./config/packages/monolog.yaml"
         ]
     },
     "symfony/options-resolver": {