diff --git a/lib/symfony/deprecation-contracts/.gitignore b/lib/symfony/deprecation-contracts/.gitignore
deleted file mode 100644
index c49a5d8df5c..00000000000
--- a/lib/symfony/deprecation-contracts/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-vendor/
-composer.lock
-phpunit.xml
diff --git a/lib/thirdpartylibs.xml b/lib/thirdpartylibs.xml
index 1287c662395..7abe3d37935 100644
--- a/lib/thirdpartylibs.xml
+++ b/lib/thirdpartylibs.xml
@@ -733,7 +733,7 @@ All rights reserved.</copyright>
     <location>symfony/deprecation-contracts</location>
     <name>Symfony Deprecation contracts</name>
     <description>A generic function and convention to trigger deprecation notices</description>
-    <version>3.5.0</version>
+    <version>3.5.1</version>
     <license>MIT</license>
     <repository>https://github.com/symfony/deprecation-contracts</repository>
   </library>