diff --git a/.github/workflows/build-ci.yml b/.github/workflows/build-ci.yml
index 023def9be..24065ad2e 100644
--- a/.github/workflows/build-ci.yml
+++ b/.github/workflows/build-ci.yml
@@ -14,7 +14,7 @@ jobs:
         strategy:
             matrix:
                 php:
-                    - '7.4'
+                    - '8.0'
         steps:
             -   name: Checkout
                 uses: actions/checkout@v2
@@ -78,7 +78,7 @@ jobs:
                 env:
                     DEBUG: ${{secrets.DEBUG}}
             -   name: Download Composer cache dependencies from cache
-                if: (!startsWith(matrix.php, '7.2'))
+                if: (!startsWith(matrix.php, '8.0'))
                 id: composer-cache
                 run: echo "::set-output name=dir::$(composer config cache-files-dir)"
             -   name: Cache Composer dependencies
@@ -89,11 +89,11 @@ jobs:
                     key: ${{ matrix.os }}-composer-${{ hashFiles('**/composer.json') }}
                     restore-keys: ${{ matrix.os }}-composer-
             -   name: Install dependencies
-                if: (!startsWith(matrix.php, '7.2'))
+                if: (!startsWith(matrix.php, '8.0'))
                 run: |
                     composer install --no-interaction
             -   name: Run tests
-                if: (!startsWith(matrix.php, '7.2'))
+                if: (!startsWith(matrix.php, '8.0'))
                 run: |
                     ./vendor/bin/phpunit --coverage-clover coverage.xml
                 env:
diff --git a/Dockerfile b/Dockerfile
index e8b6b4d2e..aa4fdb95a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG PHP_VERSION=7.4
+ARG PHP_VERSION=8.0
 ARG COMPOSER_VERSION=2.0
 
 FROM composer:${COMPOSER_VERSION}
diff --git a/composer.json b/composer.json
index 5522a67a6..e6f00302b 100644
--- a/composer.json
+++ b/composer.json
@@ -19,15 +19,15 @@
     ],
     "license": "MIT",
     "require": {
-        "illuminate/support": "^8.0",
-        "illuminate/container": "^8.0",
-        "illuminate/database": "^8.0",
-        "illuminate/events": "^8.0",
+        "illuminate/support": "^9.0",
+        "illuminate/container": "^9.0",
+        "illuminate/database": "^9.0",
+        "illuminate/events": "^9.0",
         "mongodb/mongodb": "^1.6"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.0",
-        "orchestra/testbench": "^6.0",
+        "orchestra/testbench": "^7.0",
         "mockery/mockery": "^1.3.1",
         "doctrine/dbal": "^2.6"
     },
diff --git a/src/Query/Builder.php b/src/Query/Builder.php
index de3265cb6..e0461277e 100644
--- a/src/Query/Builder.php
+++ b/src/Query/Builder.php
@@ -526,10 +526,14 @@ public function whereAll($column, array $values, $boolean = 'and', $not = false)
     /**
      * @inheritdoc
      */
-    public function whereBetween($column, array $values, $boolean = 'and', $not = false)
+    public function whereBetween($column, iterable $values, $boolean = 'and', $not = false)
     {
         $type = 'between';
 
+        if ($values instanceof CarbonPeriod) {
+            $values = $values->toArray();
+        }
+
         $this->wheres[] = compact('column', 'type', 'boolean', 'values', 'not');
 
         return $this;