diff --git a/.travis.yml b/.travis.yml
index 7a96344..378bd31 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,8 @@ php:
   - 7.2
   - 7.3
   - 7.4
+  - 8.0
+  - 8.1
 
 env:
   matrix:
diff --git a/composer.json b/composer.json
index 0d182eb..2fbfb6e 100644
--- a/composer.json
+++ b/composer.json
@@ -16,8 +16,8 @@
         }
     ],
     "require": {
-        "php": "^7.1",
-        "illuminate/encryption": "5.6.*|5.7.*|5.8.*|^6.0|^7.0|^8.0"
+        "php": "^7.1|^8.0",
+        "illuminate/encryption": "5.6.*|5.7.*|5.8.*|^6.0|^7.0|^8.0|^9.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.0|^8.0|^9.0",