diff --git a/composer.json b/composer.json
index a2d867dce82675079ca75a1e62d85e550d0c2688..91ad92035201f8ce30d1701a55532e1a85157f08 100644
--- a/composer.json
+++ b/composer.json
@@ -84,7 +84,8 @@
 		"ext-mysqli": ""
 	},
 	"conflict": {
-		"symfony/finder": "2.7.44 || 2.8.37 || 3.4.7 || 4.0.7"
+		"symfony/finder": "2.7.44 || 2.8.37 || 3.4.7 || 4.0.7",
+		"symfony/routing": "4.2.7"
 	},
 	"extra": {
 		"typo3/class-alias-loader": {
diff --git a/composer.lock b/composer.lock
index b45b00c551e8b4af1d90ffe238faa5ba482b40e0..a2085410e6adb18886c9c8168a471e9c320a8874 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "a25846e6597522c803e2e867551c3531",
+    "content-hash": "c35f3fa1a21d51fe53bef3a32a429a5f",
     "packages": [
         {
             "name": "cogpowered/finediff",
@@ -3442,12 +3442,12 @@
             "version": "v1.6.5",
             "source": {
                 "type": "git",
-                "url": "https://github.com/mikey179/vfsStream.git",
+                "url": "https://github.com/bovigo/vfsStream.git",
                 "reference": "d5fec95f541d4d71c4823bb5e30cf9b9e5b96145"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/mikey179/vfsStream/zipball/d5fec95f541d4d71c4823bb5e30cf9b9e5b96145",
+                "url": "https://api.github.com/repos/bovigo/vfsStream/zipball/d5fec95f541d4d71c4823bb5e30cf9b9e5b96145",
                 "reference": "d5fec95f541d4d71c4823bb5e30cf9b9e5b96145",
                 "shasum": ""
             },
diff --git a/typo3/sysext/core/composer.json b/typo3/sysext/core/composer.json
index b7a874e983d4dc697b6b555b560083c5456f677c..b013e833275989e09e3a888e035673031529a00c 100644
--- a/typo3/sysext/core/composer.json
+++ b/typo3/sysext/core/composer.json
@@ -64,7 +64,8 @@
 	},
 	"conflict": {
 		"symfony/finder": "2.7.44 || 2.8.37 || 3.4.7 || 4.0.7",
-		"typo3/cms": "*"
+		"typo3/cms": "*",
+		"symfony/routing": "4.2.7"
 	},
 	"replace": {
 		"core": "*",