diff --git a/composer.json b/composer.json
index dedcceb8..39480418 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     "require": {
         "php": "^7.3",
         "phpactor/class-to-file": "~0.3",
-        "phpactor/container": "^1.0",
+        "phpactor/container": "^1.3.4",
         "phpactor/logging-extension": "~0.1",
         "phpactor/reference-finder": "^0.1.5",
         "phpactor/rpc-extension": "~0.1",