diff --git a/composer.json b/composer.json
index b3ed9c7e0e..62b185464c 100644
--- a/composer.json
+++ b/composer.json
@@ -26,13 +26,13 @@
         "sensio/generator-bundle": "~2.3",
         "incenteev/composer-parameter-handler": "~2.0",
         "tedivm/stash-bundle": "0.4.*",
-        "ezsystems/ezpublish-kernel": "~6.0@dev",
-        "ezsystems/repository-forms": "~0.1@dev",
-        "ezsystems/ezplatform-solr-search-engine": "~1.0.0@dev",
-        "ezsystems/platform-ui-bundle": "~0.8@dev",
-        "ezsystems/platform-ui-assets-bundle": "~0.2",
-        "ezsystems/demobundle": "~6.0@dev",
-        "ezsystems/comments-bundle": "~6.0@dev",
+        "ezsystems/ezpublish-kernel": "~6.0.0@alpha",
+        "ezsystems/repository-forms": "~1.0.0@alpha",
+        "ezsystems/ezplatform-solr-search-engine": "~1.0.0@alpha",
+        "ezsystems/platform-ui-bundle": "~1.0.0@alpha",
+        "ezsystems/platform-ui-assets-bundle": "~1.0.0@alpha",
+        "ezsystems/demobundle": "~6.0.0@alpha",
+        "ezsystems/comments-bundle": "~6.0.0@alpha",
         "ezsystems/privacy-cookie-bundle": "~0.1",
         "egulias/listeners-debug-command-bundle": "~1.9",
         "white-october/pagerfanta-bundle": "1.0.*",