diff --git a/server/php/composer.json b/server/php/composer.json
index a3e47a7..540e06d 100644
--- a/server/php/composer.json
+++ b/server/php/composer.json
@@ -2,7 +2,7 @@
     "require": {
         "slim/slim": "^3.12",
         "vlucas/phpdotenv": "^3.4",
-        "stripe/stripe-php": "^9.0",
+        "stripe/stripe-php": "^12.0",
         "monolog/monolog": "^1.17"
     },
     "scripts": {
diff --git a/server/php/composer.lock b/server/php/composer.lock
index 7a7c260..a00e070 100644
--- a/server/php/composer.lock
+++ b/server/php/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": "adbb48f465a88b03198c9741e62b75f7",
+    "content-hash": "d20d2a3b723824d1cac3b270061ff169",
     "packages": [
         {
             "name": "container-interop/container-interop",
@@ -480,16 +480,16 @@
         },
         {
             "name": "stripe/stripe-php",
-            "version": "v9.9.0",
+            "version": "v12.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/stripe/stripe-php.git",
-                "reference": "479b5c2136fde0debb93d290ceaf20dd161c358f"
+                "reference": "732996be0714154716f19f73f956d77bafc99334"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/stripe/stripe-php/zipball/479b5c2136fde0debb93d290ceaf20dd161c358f",
-                "reference": "479b5c2136fde0debb93d290ceaf20dd161c358f",
+                "url": "https://api.github.com/repos/stripe/stripe-php/zipball/732996be0714154716f19f73f956d77bafc99334",
+                "reference": "732996be0714154716f19f73f956d77bafc99334",
                 "shasum": ""
             },
             "require": {
@@ -535,9 +535,9 @@
             ],
             "support": {
                 "issues": "https://github.com/stripe/stripe-php/issues",
-                "source": "https://github.com/stripe/stripe-php/tree/v9.9.0"
+                "source": "https://github.com/stripe/stripe-php/tree/v12.0.0"
             },
-            "time": "2022-11-08T20:25:52+00:00"
+            "time": "2023-08-18T18:55:28+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",