diff --git a/.travis.yml b/.travis.yml
index 209c8da2d..ea19c6b38 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -43,6 +43,15 @@ matrix:
     - php: 7.1
       env:
         - DEPS=latest
+    - php: 7.2
+      env:
+        - DEPS=lowest
+    - php: 7.2
+      env:
+        - DEPS=locked
+    - php: 7.2
+      env:
+        - DEPS=latest
 
 notifications:
   email: false
diff --git a/composer.json b/composer.json
index df542b948..b372d70c4 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
     "require": {
         "php": "^5.6 || ^7.0",
         "zendframework/zend-escaper": "^2.5",
-        "zendframework/zend-validator": "^2.5"
+        "zendframework/zend-validator": "^2.10"
     },
     "extra": {
         "branch-alias": {
diff --git a/composer.lock b/composer.lock
index f05b0c500..db70a4412 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "d8621fbd9aac5b2d5f2b818c07eb6f2d",
+    "content-hash": "8018050ae4588a6a06994f15d9e4d605",
     "packages": [
         {
             "name": "container-interop/container-interop",
@@ -88,30 +88,30 @@
         },
         {
             "name": "zendframework/zend-escaper",
-            "version": "2.5.2",
+            "version": "2.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-escaper.git",
-                "reference": "2dcd14b61a72d8b8e27d579c6344e12c26141d4e"
+                "reference": "31d8aafae982f9568287cb4dce987e6aff8fd074"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-escaper/zipball/2dcd14b61a72d8b8e27d579c6344e12c26141d4e",
-                "reference": "2dcd14b61a72d8b8e27d579c6344e12c26141d4e",
+                "url": "https://api.github.com/repos/zendframework/zend-escaper/zipball/31d8aafae982f9568287cb4dce987e6aff8fd074",
+                "reference": "31d8aafae982f9568287cb4dce987e6aff8fd074",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5"
+                "php": "^5.6 || ^7.0"
             },
             "require-dev": {
-                "fabpot/php-cs-fixer": "1.7.*",
-                "phpunit/phpunit": "~4.0"
+                "phpunit/phpunit": "^5.7.27 || ^6.5.8 || ^7.1.2",
+                "zendframework/zend-coding-standard": "~1.0.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.5-dev",
-                    "dev-develop": "2.6-dev"
+                    "dev-master": "2.6.x-dev",
+                    "dev-develop": "2.7.x-dev"
                 }
             },
             "autoload": {
@@ -123,25 +123,26 @@
             "license": [
                 "BSD-3-Clause"
             ],
-            "homepage": "https://github.com/zendframework/zend-escaper",
+            "description": "Securely and safely escape HTML, HTML attributes, JavaScript, CSS, and URLs",
             "keywords": [
+                "ZendFramework",
                 "escaper",
-                "zf2"
+                "zf"
             ],
-            "time": "2016-06-30T19:48:38+00:00"
+            "time": "2018-04-25T15:48:53+00:00"
         },
         {
             "name": "zendframework/zend-stdlib",
-            "version": "3.1.0",
+            "version": "3.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-stdlib.git",
-                "reference": "debedcfc373a293f9250cc9aa03cf121428c8e78"
+                "reference": "10ef03144902d1955f935fff5346ed52f7d99bcc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-stdlib/zipball/debedcfc373a293f9250cc9aa03cf121428c8e78",
-                "reference": "debedcfc373a293f9250cc9aa03cf121428c8e78",
+                "url": "https://api.github.com/repos/zendframework/zend-stdlib/zipball/10ef03144902d1955f935fff5346ed52f7d99bcc",
+                "reference": "10ef03144902d1955f935fff5346ed52f7d99bcc",
                 "shasum": ""
             },
             "require": {
@@ -150,7 +151,7 @@
             "require-dev": {
                 "athletic/athletic": "~0.1",
                 "phpunit/phpunit": "~4.0",
-                "squizlabs/php_codesniffer": "^2.6.2"
+                "zendframework/zend-coding-standard": "~1.0.0"
             },
             "type": "library",
             "extra": {
@@ -173,7 +174,7 @@
                 "stdlib",
                 "zf2"
             ],
-            "time": "2016-09-13T14:38:50+00:00"
+            "time": "2018-04-12T16:05:42+00:00"
         },
         {
             "name": "zendframework/zend-validator",
@@ -603,23 +604,23 @@
         },
         {
             "name": "phpspec/prophecy",
-            "version": "1.7.5",
+            "version": "1.7.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "dfd6be44111a7c41c2e884a336cc4f461b3b2401"
+                "reference": "33a7e3c4fda54e912ff6338c48823bd5c0f0b712"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/dfd6be44111a7c41c2e884a336cc4f461b3b2401",
-                "reference": "dfd6be44111a7c41c2e884a336cc4f461b3b2401",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/33a7e3c4fda54e912ff6338c48823bd5c0f0b712",
+                "reference": "33a7e3c4fda54e912ff6338c48823bd5c0f0b712",
                 "shasum": ""
             },
             "require": {
                 "doctrine/instantiator": "^1.0.2",
                 "php": "^5.3|^7.0",
                 "phpdocumentor/reflection-docblock": "^2.0|^3.0.2|^4.0",
-                "sebastian/comparator": "^1.1|^2.0",
+                "sebastian/comparator": "^1.1|^2.0|^3.0",
                 "sebastian/recursion-context": "^1.0|^2.0|^3.0"
             },
             "require-dev": {
@@ -662,7 +663,7 @@
                 "spy",
                 "stub"
             ],
-            "time": "2018-02-19T10:16:54+00:00"
+            "time": "2018-04-18T13:57:24+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",