diff --git a/composer.json b/composer.json
index 312e48c5e7..f2e3855031 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
 		"yzalis/identicon": "*",
 		"zordius/lightncandy": "0.*",
 		"composer/semver": "^1.4",
-		"zendframework/zend-servicemanager": "^3.1",
+		"zendframework/zend-servicemanager": "2.6.0",
 		"tecnickcom/tcpdf": "^6.2",
 		"php-mime-mail-parser/php-mime-mail-parser": "^2.5"
 	},
diff --git a/composer.lock b/composer.lock
index aed8a55653..ba8ac818f5 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "1255274fea690daf512f990763ea3afa",
-    "content-hash": "606642f3170381129dbe0612c8ed4fb7",
+    "hash": "db035a3a8588328c27b938c919c9ad36",
+    "content-hash": "44324609c64eb3f36213a310b3b1dc2b",
     "packages": [
         {
             "name": "composer/semver",
@@ -1324,40 +1324,37 @@
         },
         {
             "name": "zendframework/zend-servicemanager",
-            "version": "3.1.1",
+            "version": "2.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-servicemanager.git",
-                "reference": "f701b0d322741b0c8d8ca1288f249a49438029cd"
+                "reference": "1dc33f23bd0a7f4d8ba743b915fae523d356027a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-servicemanager/zipball/f701b0d322741b0c8d8ca1288f249a49438029cd",
-                "reference": "f701b0d322741b0c8d8ca1288f249a49438029cd",
+                "url": "https://api.github.com/repos/zendframework/zend-servicemanager/zipball/1dc33f23bd0a7f4d8ba743b915fae523d356027a",
+                "reference": "1dc33f23bd0a7f4d8ba743b915fae523d356027a",
                 "shasum": ""
             },
             "require": {
                 "container-interop/container-interop": "~1.0",
-                "php": "^5.5 || ^7.0"
-            },
-            "provide": {
-                "container-interop/container-interop-implementation": "^1.1"
+                "php": ">=5.5"
             },
             "require-dev": {
-                "ocramius/proxy-manager": "^1.0 || ^2.0",
-                "phpbench/phpbench": "^0.10.0",
-                "phpunit/phpunit": "^4.6 || ^5.2.10",
-                "squizlabs/php_codesniffer": "^2.5.1"
+                "fabpot/php-cs-fixer": "1.7.*",
+                "phpunit/phpunit": "~4.0",
+                "zendframework/zend-di": "~2.5",
+                "zendframework/zend-mvc": "~2.5"
             },
             "suggest": {
-                "ocramius/proxy-manager": "ProxyManager 1.* to handle lazy initialization of services",
-                "zendframework/zend-stdlib": "zend-stdlib ^2.5 if you wish to use the MergeReplaceKey or MergeRemoveKey features in Config instances"
+                "ocramius/proxy-manager": "ProxyManager 0.5.* to handle lazy initialization of services",
+                "zendframework/zend-di": "Zend\\Di component"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.1-dev",
-                    "dev-develop": "3.2-dev"
+                    "dev-master": "2.6-dev",
+                    "dev-develop": "2.7-dev"
                 }
             },
             "autoload": {
@@ -1371,11 +1368,10 @@
             ],
             "homepage": "https://github.com/zendframework/zend-servicemanager",
             "keywords": [
-                "service-manager",
                 "servicemanager",
-                "zf"
+                "zf2"
             ],
-            "time": "2016-07-15 14:59:51"
+            "time": "2015-07-23 21:49:08"
         },
         {
             "name": "zendframework/zend-stdlib",