diff --git a/composer.json b/composer.json
index 504930a249..0b197009a8 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
         "drupal/config_readonly": "~1.0",
         "drupal/config_sync": "^1.0-alpha7",
         "drupal/config_update": "~1.4",
-        "drupal/core": "^8.6.15",
+        "drupal/core": "^8.6.16",
         "drupal/diff": "^1.0@RC",
         "drupal/digital_size_formatter": "^1.0-alpha1",
         "drupal/ds": "^3.0",
diff --git a/composer.lock b/composer.lock
index 57ab9fa997..80af190d5a 100644
--- a/composer.lock
+++ b/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": "50b80812b1d8785cc79e93c0350f00ac",
+    "content-hash": "18e05562564f32ef7ca7b7f8562f7f49",
     "packages": [
         {
             "name": "SEMICeu/adms-ap_validator",
@@ -2800,16 +2800,16 @@
         },
         {
             "name": "drupal/core",
-            "version": "8.6.15",
+            "version": "8.6.16",
             "source": {
                 "type": "git",
                 "url": "https://github.com/drupal/core.git",
-                "reference": "936456cdeac25c6bbd2f55b0d587239c6a81ba86"
+                "reference": "a9c4c97c7da9ec1a38782912bb06784d28590539"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/drupal/core/zipball/936456cdeac25c6bbd2f55b0d587239c6a81ba86",
-                "reference": "936456cdeac25c6bbd2f55b0d587239c6a81ba86",
+                "url": "https://api.github.com/repos/drupal/core/zipball/a9c4c97c7da9ec1a38782912bb06784d28590539",
+                "reference": "a9c4c97c7da9ec1a38782912bb06784d28590539",
                 "shasum": ""
             },
             "require": {
@@ -2853,7 +2853,7 @@
                 "symfony/validator": "~3.4.0",
                 "symfony/yaml": "~3.4.5",
                 "twig/twig": "^1.38.2",
-                "typo3/phar-stream-wrapper": "^2.0.1",
+                "typo3/phar-stream-wrapper": "^2.1.1",
                 "zendframework/zend-diactoros": "^1.1",
                 "zendframework/zend-feed": "^2.4"
             },
@@ -3055,7 +3055,7 @@
                 "GPL-2.0-or-later"
             ],
             "description": "Drupal is an open source content management platform powering millions of websites and applications.",
-            "time": "2019-04-17T20:00:11+00:00"
+            "time": "2019-05-08T16:00:58+00:00"
         },
         {
             "name": "drupal/csv_serialization",
@@ -3554,7 +3554,7 @@
                 },
                 "drupal": {
                     "version": "8.x-1.3",
-                    "datestamp": "1551291083",
+                    "datestamp": "1556645881",
                     "security-coverage": {
                         "status": "covered",
                         "message": "Covered by Drupal's security advisory policy"
@@ -3677,7 +3677,7 @@
                 },
                 "drupal": {
                     "version": "8.x-1.0-alpha6",
-                    "datestamp": "1504220345",
+                    "datestamp": "1556632685",
                     "security-coverage": {
                         "status": "not-covered",
                         "message": "Project has not opted into security advisory coverage!"
@@ -3940,7 +3940,7 @@
                 },
                 "drupal": {
                     "version": "8.x-1.1",
-                    "datestamp": "1548102780",
+                    "datestamp": "1555864685",
                     "security-coverage": {
                         "status": "covered",
                         "message": "Covered by Drupal's security advisory policy"
@@ -4785,6 +4785,10 @@
                     "name": "moshe weitzman",
                     "homepage": "https://www.drupal.org/user/23"
                 },
+                {
+                    "name": "mpp",
+                    "homepage": "https://www.drupal.org/user/359881"
+                },
                 {
                     "name": "pfrenssen",
                     "homepage": "https://www.drupal.org/user/382067"
@@ -5239,7 +5243,7 @@
                 },
                 "drupal": {
                     "version": "8.x-1.0-alpha15",
-                    "datestamp": "1552465986",
+                    "datestamp": "1556002086",
                     "security-coverage": {
                         "status": "not-covered",
                         "message": "Project has not opted into security advisory coverage!"
@@ -5599,7 +5603,7 @@
                 },
                 "drupal": {
                     "version": "8.x-1.0-alpha3",
-                    "datestamp": "1487059683",
+                    "datestamp": "1556010481",
                     "security-coverage": {
                         "status": "not-covered",
                         "message": "Alpha releases are not covered by Drupal security advisories."
@@ -5614,6 +5618,10 @@
                 "GPL-2.0-or-later"
             ],
             "authors": [
+                {
+                    "name": "AdamPS",
+                    "homepage": "https://www.drupal.org/user/2650563"
+                },
                 {
                     "name": "AlexisWilke",
                     "homepage": "https://www.drupal.org/user/356197"
@@ -5638,7 +5646,7 @@
             "description": "Send newsletters to subscribed email addresses. For uninstall go to Configuration > Web services > Simplenews > Settings and hit \"Prepare uninstall\".",
             "homepage": "https://www.drupal.org/project/simplenews",
             "support": {
-                "source": "http://cgit.drupalcode.org/simplenews"
+                "source": "https://git.drupalcode.org/project/simplenews"
             }
         },
         {
@@ -6304,7 +6312,7 @@
             "description": "Views Bulk Operation",
             "homepage": "https://www.drupal.org/project/views_bulk_operations",
             "support": {
-                "source": "http://cgit.drupalcode.org/views_bulk_operations"
+                "source": "https://git.drupalcode.org/project/views_bulk_operations"
             }
         },
         {
@@ -11277,16 +11285,16 @@
         },
         {
             "name": "typo3/phar-stream-wrapper",
-            "version": "v2.1.0",
+            "version": "v2.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/TYPO3/phar-stream-wrapper.git",
-                "reference": "b7a21f0859059ed5d9754af8c11f852d43762334"
+                "reference": "e438b0c78652b33407983eb29d215a1a3f68f6f3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/TYPO3/phar-stream-wrapper/zipball/b7a21f0859059ed5d9754af8c11f852d43762334",
-                "reference": "b7a21f0859059ed5d9754af8c11f852d43762334",
+                "url": "https://api.github.com/repos/TYPO3/phar-stream-wrapper/zipball/e438b0c78652b33407983eb29d215a1a3f68f6f3",
+                "reference": "e438b0c78652b33407983eb29d215a1a3f68f6f3",
                 "shasum": ""
             },
             "require": {
@@ -11296,6 +11304,7 @@
                 "php": "^5.3.3|^7.0"
             },
             "require-dev": {
+                "ext-xdebug": "*",
                 "phpunit/phpunit": "^4.8.36"
             },
             "type": "library",
@@ -11316,7 +11325,7 @@
                 "security",
                 "stream-wrapper"
             ],
-            "time": "2019-03-01T17:43:52+00:00"
+            "time": "2019-05-05T17:30:51+00:00"
         },
         {
             "name": "webflo/drupal-finder",