diff --git a/composer.json b/composer.json
index 2a7db20..30c5509 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "require": {
         "php": "^7.1.3",
         "ext-gd": "*",
-        "gregwar/captcha": "~1.1",
+        "gregwar/captcha": "^1.1.9",
         "symfony/form": "~4.0|~5.0",
         "symfony/framework-bundle": "~4.0|~5.0",
         "symfony/translation": "~4.0|^5.0",