diff --git a/composer.json b/composer.json
index f6a49264..fea2d432 100644
--- a/composer.json
+++ b/composer.json
@@ -26,12 +26,12 @@
         "php": "^7.2",
         "ext-json": "*",
         "doctrine/cache": "^1.7",
-        "doctrine/doctrine-cache-bundle": "^1.0",
-        "guzzlehttp/guzzle": "^5.0 || ^6.0",
+        "doctrine/doctrine-cache-bundle": "^1.3",
+        "guzzlehttp/guzzle": "^6.3",
         "heise/shariff": "^8.0",
-        "sonata-project/admin-bundle": "^3.35",
-        "sonata-project/block-bundle": "^3.13",
-        "sonata-project/core-bundle": "^3.13.5",
+        "sonata-project/admin-bundle": "^3.48",
+        "sonata-project/block-bundle": "^3.15",
+        "sonata-project/core-bundle": "^3.17",
         "symfony/config": "^3.4 || ^4.2",
         "symfony/dependency-injection": "^3.4 || ^4.2",
         "symfony/expression-language": "^3.4 || ^4.2",