diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1a17132..9a6dfff 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,12 +22,15 @@ jobs:
           - '7.3'
           - '7.4'
         laravel:
+          - 6.*
           - 7.*
           - 8.*
         prefer:
           - 'prefer-lowest'
           - 'prefer-stable'
         include:
+          - laravel: '6.*'
+            testbench: '4.*'
           - laravel: '7.*'
             testbench: '5.*'
           - laravel: '8.*'
diff --git a/composer.json b/composer.json
index 768f270..49f213b 100644
--- a/composer.json
+++ b/composer.json
@@ -35,12 +35,12 @@
         "evenement/evenement": "^2.0|^3.0",
         "facade/ignition-contracts": "^1.0",
         "guzzlehttp/psr7": "^1.5",
-        "illuminate/broadcasting": "^7.0|^8.0",
-        "illuminate/console": "^7.0|^8.0",
-        "illuminate/http": "^7.0|^8.0",
-        "illuminate/queue": "^7.0|^8.0",
-        "illuminate/routing": "^7.0|^8.0",
-        "illuminate/support": "^7.0|^8.0",
+        "illuminate/broadcasting": "^6.3|^7.0|^8.0",
+        "illuminate/console": "^^6.3|7.0|^8.0",
+        "illuminate/http": "^6.3|^7.0|^8.0",
+        "illuminate/queue": "^6.3|^7.0|^8.0",
+        "illuminate/routing": "^6.3|^7.0|^8.0",
+        "illuminate/support": "^6.3|^7.0|^8.0",
         "pusher/pusher-php-server": "^4.0",
         "react/promise": "^2.0",
         "symfony/http-kernel": "^4.0|^5.0",
@@ -49,8 +49,8 @@
     "require-dev": {
         "clue/block-react": "^1.4",
         "laravel/legacy-factories": "^1.1",
-        "orchestra/testbench-browser-kit": "^5.0|^6.0",
-        "orchestra/database": "^5.0|^6.0",
+        "orchestra/testbench-browser-kit": "^4.0|^5.0|^6.0",
+        "orchestra/database": "^4.0|^5.0|^6.0",
         "phpunit/phpunit": "^8.0|^9.0"
     },
     "suggest": {