diff --git a/composer.json b/composer.json
index 4fc5bd6..7802dfa 100644
--- a/composer.json
+++ b/composer.json
@@ -19,8 +19,8 @@
         "issues": "http://github.com/silverstripe/silverstripe-tagfield/issues"
     },
     "require": {
-        "silverstripe/framework": "^4.0",
-        "silverstripe/versioned": "^1.0"
+        "silverstripe/framework": "^4.3",
+        "silverstripe/versioned": "^1.3"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.7",