diff --git a/Makefile b/Makefile
index 4546f12..ba7bea7 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ image_hash = $(shell sha256sum Dockerfile-dev | cut -c -8)
 php_image = blackfire/player-test:$(image_hash)
 
 box_version = 4.1.0
-box_image = blackfire/php-internal:8.2-v1.0.31
+box_image = blackfire/php-internal:8.3-v1.0.31
 
 BOX_BIN=bin/tools/box-$(box_version).phar
 PHAR_DIST=bin/blackfire-player.phar
diff --git a/composer.json b/composer.json
index 154a569..1ba9e23 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
         }
     ],
     "require": {
-        "php": ">=8.2",
+        "php": ">=8.3",
         "ext-ctype": "*",
         "ext-filter": "*",
         "ext-intl": "*",
@@ -64,7 +64,7 @@
     },
     "config": {
         "platform": {
-            "php": "8.2.5"
+            "php": "8.3"
         },
         "preferred-install": {
             "*": "dist"
diff --git a/composer.lock b/composer.lock
index 9d9382a..deb39fa 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": "f36279dffb7ea304c857f4f4f60e27c2",
+    "content-hash": "0f2102645fc644f2245ad7116058e115",
     "packages": [
         {
             "name": "blackfire/php-sdk",
@@ -3212,7 +3212,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=8.2",
+        "php": ">=8.3",
         "ext-ctype": "*",
         "ext-filter": "*",
         "ext-intl": "*",
@@ -3220,7 +3220,7 @@
     },
     "platform-dev": [],
     "platform-overrides": {
-        "php": "8.2.5"
+        "php": "8.3"
     },
     "plugin-api-version": "2.6.0"
 }