diff --git a/composer.lock b/composer.lock
index e382c70..e6227ec 100644
--- a/composer.lock
+++ b/composer.lock
@@ -8,16 +8,16 @@
     "packages": [
         {
             "name": "composer/ca-bundle",
-            "version": "1.0.9",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/ca-bundle.git",
-                "reference": "36344aeffdc37711335563e6108cda86566432a6"
+                "reference": "943b2c4fcad1ef178d16a713c2468bf7e579c288"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/ca-bundle/zipball/36344aeffdc37711335563e6108cda86566432a6",
-                "reference": "36344aeffdc37711335563e6108cda86566432a6",
+                "url": "https://api.github.com/repos/composer/ca-bundle/zipball/943b2c4fcad1ef178d16a713c2468bf7e579c288",
+                "reference": "943b2c4fcad1ef178d16a713c2468bf7e579c288",
                 "shasum": ""
             },
             "require": {
@@ -26,12 +26,9 @@
                 "php": "^5.3.2 || ^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.5",
+                "phpunit/phpunit": "^4.8.35",
                 "psr/log": "^1.0",
-                "symfony/process": "^2.5 || ^3.0"
-            },
-            "suggest": {
-                "symfony/process": "This is necessary to reliably check whether openssl_x509_parse is vulnerable on older php versions, but can be ignored on PHP 5.5.6+"
+                "symfony/process": "^2.5 || ^3.0 || ^4.0"
             },
             "type": "library",
             "extra": {
@@ -63,7 +60,7 @@
                 "ssl",
                 "tls"
             ],
-            "time": "2017-11-13T15:51:25+00:00"
+            "time": "2017-11-29T09:37:33+00:00"
         },
         {
             "name": "composer/composer",