diff --git a/php/composer.lock b/php/composer.lock
index 7bdff1c6..58006692 100644
--- a/php/composer.lock
+++ b/php/composer.lock
@@ -1328,7 +1328,7 @@
         },
         {
             "name": "symfony/deprecation-contracts",
-            "version": "v3.3.0",
+            "version": "v3.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/deprecation-contracts.git",
@@ -1375,7 +1375,7 @@
             "description": "A generic function and convention to trigger deprecation notices",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/deprecation-contracts/tree/v3.3.0"
+                "source": "https://github.com/symfony/deprecation-contracts/tree/v3.4.0"
             },
             "funding": [
                 {