diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7a50071..b252927 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [8.2, 8.1, 8.0, 7.4]
+        php: [8.3, 8.2, 8.1, 8.0]
         dependency-version: [prefer-lowest, prefer-stable]
         guzzle: [7.*, 6.2]
 
diff --git a/composer.json b/composer.json
index 27960bd..995acf4 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
   ],
   "license": "MIT",
   "require": {
-    "php": "^7.4 | ^8",
+    "php": "^8",
     "ext-json": "*",
     "ext-curl": "*",
     "guzzlehttp/guzzle": "^6.2 | ^7.0"
diff --git a/composer.lock b/composer.lock
index 91ea1c3..58b44d2 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "5b2289d0c6a7a51f94db4f07cee2b87b",
+    "content-hash": "32ef1eba9abeaeccb0e0e2d35092f155",
     "packages": [
         {
             "name": "guzzlehttp/guzzle",
@@ -2403,7 +2403,7 @@
     "prefer-stable": true,
     "prefer-lowest": false,
     "platform": {
-        "php": "^7.4 | ^8",
+        "php": "^8",
         "ext-json": "*",
         "ext-curl": "*"
     },