diff --git a/composer.json b/composer.json
index 5a688da..34cc3ca 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
     "zendframework/zend-mvc": "3.0.1",
     "zfcampus/zf-development-mode": "3.0",
     "zendframework/zend-test": "3.1.0",
-    "zendframework/zend-json": "3.0.0"
+    "zendframework/zend-json": "3.1.2"
 
   },
   "extra": {
diff --git a/composer.lock b/composer.lock
index 17eb495..a60a3ee 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": "6eb9d30af2008cca8e6cbca2ff38ba0e",
+    "content-hash": "3d8894d743361eb0615166ae80430aea",
     "packages": [
         {
             "name": "aws/aws-sdk-php",
@@ -1151,6 +1151,7 @@
                 "mock",
                 "xunit"
             ],
+            "abandoned": true,
             "time": "2017-08-03T14:08:16+00:00"
         },
         {
@@ -2252,25 +2253,25 @@
         },
         {
             "name": "zendframework/zend-json",
-            "version": "3.0.0",
+            "version": "3.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-json.git",
-                "reference": "f42a1588e75c2a3e338cd94c37906231e616daab"
+                "reference": "e9ddb1192d93fe7fff846ac895249c39db75132b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-json/zipball/f42a1588e75c2a3e338cd94c37906231e616daab",
-                "reference": "f42a1588e75c2a3e338cd94c37906231e616daab",
+                "url": "https://api.github.com/repos/zendframework/zend-json/zipball/e9ddb1192d93fe7fff846ac895249c39db75132b",
+                "reference": "e9ddb1192d93fe7fff846ac895249c39db75132b",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5 || ^7.0"
+                "php": "^5.6 || ^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.0",
-                "squizlabs/php_codesniffer": "^2.3",
-                "zendframework/zend-stdlib": "^2.7 || ^3.0"
+                "phpunit/phpunit": "^5.7.23 || ^6.4.3",
+                "zendframework/zend-coding-standard": "~1.0.0",
+                "zendframework/zend-stdlib": "^2.7.7 || ^3.1"
             },
             "suggest": {
                 "zendframework/zend-json-server": "For implementing JSON-RPC servers",
@@ -2279,8 +2280,8 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.0-dev",
-                    "dev-develop": "3.1-dev"
+                    "dev-master": "3.1.x-dev",
+                    "dev-develop": "3.2.x-dev"
                 }
             },
             "autoload": {
@@ -2293,12 +2294,12 @@
                 "BSD-3-Clause"
             ],
             "description": "provides convenience methods for serializing native PHP to JSON and decoding JSON to native PHP",
-            "homepage": "https://github.com/zendframework/zend-json",
             "keywords": [
+                "ZendFramework",
                 "json",
-                "zf2"
+                "zf"
             ],
-            "time": "2016-04-01T02:34:00+00:00"
+            "time": "2019-10-09T13:56:13+00:00"
         },
         {
             "name": "zendframework/zend-loader",