diff --git a/composer.json b/composer.json
index 16f28ae..632f079 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,10 @@
 	"name": "madeorsk/poll-verlaine",
 	"type": "project",
 	"require": {
-		"mikecao/flight": "^1.3"
+		"mikecao/flight": "^1.3",
+		"ext-openssl": "*",
+		"ext-dba": "*",
+		"ext-json": "*"
 	},
 	"license": "AGPL-3.0",
 	"authors": [