diff --git a/composer.json b/composer.json
index dc74b6f..918c539 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
         "ext-openssl": "*",
         "ext-pdo_mysql": "*",
         "zordius/lightncandy": "^1.0",
-        "firebase/php-jwt": "^3.0",
+        "firebase/php-jwt": "^6.0",
         "slim/slim": "^3.0",
         "claviska/simpleimage": "^3.0",
         "erusev/parsedown": "^1.6",
diff --git a/composer.lock b/composer.lock
index 8f64f6c..cdaa047 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,10 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "0b71d4b6cff1ff28b98f46aadfc7f959",
+    "content-hash": "5e1b2356f20672f1083a75cf9e4406bb",
     "packages": [
         {
             "name": "claviska/simpleimage",
@@ -182,21 +182,27 @@
         },
         {
             "name": "firebase/php-jwt",
-            "version": "v3.0.0",
+            "version": "v6.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/firebase/php-jwt.git",
-                "reference": "fa8a06e96526eb7c0eeaa47e4f39be59d21f16e1"
+                "reference": "0541cba75ab108ef901985e68055a92646c73534"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/fa8a06e96526eb7c0eeaa47e4f39be59d21f16e1",
-                "reference": "fa8a06e96526eb7c0eeaa47e4f39be59d21f16e1",
+                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/0541cba75ab108ef901985e68055a92646c73534",
+                "reference": "0541cba75ab108ef901985e68055a92646c73534",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.0"
             },
+            "require-dev": {
+                "phpunit/phpunit": ">=4.8 <=9"
+            },
+            "suggest": {
+                "paragonie/sodium_compat": "Support EdDSA (Ed25519) signatures when libsodium is not present"
+            },
             "type": "library",
             "autoload": {
                 "psr-4": {
@@ -221,7 +227,15 @@
             ],
             "description": "A simple library to encode and decode JSON Web Tokens (JWT) in PHP. Should conform to the current spec.",
             "homepage": "https://github.com/firebase/php-jwt",
-            "time": "2015-07-22T18:31:08+00:00"
+            "keywords": [
+                "jwt",
+                "php"
+            ],
+            "support": {
+                "issues": "https://github.com/firebase/php-jwt/issues",
+                "source": "https://github.com/firebase/php-jwt/tree/v6.0.0"
+            },
+            "time": "2022-01-24T15:18:34+00:00"
         },
         {
             "name": "league/color-extractor",
@@ -1113,12 +1127,13 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=5.6",
+        "php": ">=7.1",
         "ext-curl": "*",
         "ext-gd": "*",
         "ext-mbstring": "*",
         "ext-openssl": "*",
         "ext-pdo_mysql": "*"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.3.0"
 }