diff --git a/composer.json b/composer.json
index f263c15d45..350ea8cce2 100644
--- a/composer.json
+++ b/composer.json
@@ -21,6 +21,7 @@
         "doctrine/common": "~2.4",
         "paragonie/random_compat": "~1.0",
         "symfony/polyfill-apcu": "~1.1",
+        "symfony/polyfill-ctype": "~1.8",
         "symfony/polyfill-mbstring": "~1.1",
         "twig/twig": "~1.34|~2.4",
         "psr/log": "~1.0"
diff --git a/src/Symfony/Bridge/Doctrine/composer.json b/src/Symfony/Bridge/Doctrine/composer.json
index e9dda5f59a..cd0794f3e4 100644
--- a/src/Symfony/Bridge/Doctrine/composer.json
+++ b/src/Symfony/Bridge/Doctrine/composer.json
@@ -17,7 +17,8 @@
     ],
     "require": {
         "php": ">=5.3.9",
-        "doctrine/common": "~2.4"
+        "doctrine/common": "~2.4",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "require-dev": {
         "symfony/stopwatch": "~2.2",
diff --git a/src/Symfony/Bundle/TwigBundle/composer.json b/src/Symfony/Bundle/TwigBundle/composer.json
index cd2f229e4f..d5b85177bc 100644
--- a/src/Symfony/Bundle/TwigBundle/composer.json
+++ b/src/Symfony/Bundle/TwigBundle/composer.json
@@ -21,7 +21,8 @@
         "symfony/twig-bridge": "~2.7",
         "twig/twig": "~1.34|~2.4",
         "symfony/http-foundation": "~2.5",
-        "symfony/http-kernel": "~2.7.23|^2.8.16"
+        "symfony/http-kernel": "~2.7.23|^2.8.16",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "require-dev": {
         "symfony/stopwatch": "~2.2",
diff --git a/src/Symfony/Component/Config/composer.json b/src/Symfony/Component/Config/composer.json
index 47f8642ae6..2027e190c8 100644
--- a/src/Symfony/Component/Config/composer.json
+++ b/src/Symfony/Component/Config/composer.json
@@ -17,7 +17,8 @@
     ],
     "require": {
         "php": ">=5.3.9",
-        "symfony/filesystem": "~2.3"
+        "symfony/filesystem": "~2.3",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "require-dev": {
         "symfony/yaml": "~2.7"
diff --git a/src/Symfony/Component/DomCrawler/composer.json b/src/Symfony/Component/DomCrawler/composer.json
index 5ea57b2657..068f8390ed 100644
--- a/src/Symfony/Component/DomCrawler/composer.json
+++ b/src/Symfony/Component/DomCrawler/composer.json
@@ -16,7 +16,8 @@
         }
     ],
     "require": {
-        "php": ">=5.3.9"
+        "php": ">=5.3.9",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "require-dev": {
         "symfony/css-selector": "~2.3"
diff --git a/src/Symfony/Component/ExpressionLanguage/composer.json b/src/Symfony/Component/ExpressionLanguage/composer.json
index 5bff703b0e..9d4d693812 100644
--- a/src/Symfony/Component/ExpressionLanguage/composer.json
+++ b/src/Symfony/Component/ExpressionLanguage/composer.json
@@ -16,7 +16,8 @@
         }
     ],
     "require": {
-        "php": ">=5.3.9"
+        "php": ">=5.3.9",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\ExpressionLanguage\\": "" },
diff --git a/src/Symfony/Component/Filesystem/composer.json b/src/Symfony/Component/Filesystem/composer.json
index 20a13bbd92..e1783a7f10 100644
--- a/src/Symfony/Component/Filesystem/composer.json
+++ b/src/Symfony/Component/Filesystem/composer.json
@@ -16,7 +16,8 @@
         }
     ],
     "require": {
-        "php": ">=5.3.9"
+        "php": ">=5.3.9",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Filesystem\\": "" },
diff --git a/src/Symfony/Component/Form/composer.json b/src/Symfony/Component/Form/composer.json
index 5b3af06994..67441c9ec9 100644
--- a/src/Symfony/Component/Form/composer.json
+++ b/src/Symfony/Component/Form/composer.json
@@ -20,6 +20,7 @@
         "symfony/event-dispatcher": "~2.1",
         "symfony/intl": "~2.7.25|^2.8.18",
         "symfony/options-resolver": "~2.6",
+        "symfony/polyfill-ctype": "~1.8",
         "symfony/property-access": "~2.3"
     },
     "require-dev": {
diff --git a/src/Symfony/Component/HttpKernel/composer.json b/src/Symfony/Component/HttpKernel/composer.json
index 1b6b096a8a..6986945497 100644
--- a/src/Symfony/Component/HttpKernel/composer.json
+++ b/src/Symfony/Component/HttpKernel/composer.json
@@ -20,6 +20,7 @@
         "symfony/event-dispatcher": "^2.6.7",
         "symfony/http-foundation": "~2.7.36|^2.8.29",
         "symfony/debug": "^2.6.2",
+        "symfony/polyfill-ctype": "~1.8",
         "psr/log": "~1.0"
     },
     "require-dev": {
diff --git a/src/Symfony/Component/Intl/composer.json b/src/Symfony/Component/Intl/composer.json
index 2310fbb396..cc9ac80f55 100644
--- a/src/Symfony/Component/Intl/composer.json
+++ b/src/Symfony/Component/Intl/composer.json
@@ -24,7 +24,8 @@
         }
     ],
     "require": {
-        "php": ">=5.3.9"
+        "php": ">=5.3.9",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "require-dev": {
         "symfony/filesystem": "~2.1"
diff --git a/src/Symfony/Component/PropertyAccess/composer.json b/src/Symfony/Component/PropertyAccess/composer.json
index c02990a198..8e881763ef 100644
--- a/src/Symfony/Component/PropertyAccess/composer.json
+++ b/src/Symfony/Component/PropertyAccess/composer.json
@@ -16,7 +16,8 @@
         }
     ],
     "require": {
-        "php": ">=5.3.9"
+        "php": ">=5.3.9",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\PropertyAccess\\": "" },
diff --git a/src/Symfony/Component/Security/Csrf/composer.json b/src/Symfony/Component/Security/Csrf/composer.json
index 4f6ee250c0..1fb4bcbf68 100644
--- a/src/Symfony/Component/Security/Csrf/composer.json
+++ b/src/Symfony/Component/Security/Csrf/composer.json
@@ -20,7 +20,8 @@
         "symfony/security-core": "~2.4"
     },
     "require-dev": {
-        "symfony/http-foundation": "~2.7"
+        "symfony/http-foundation": "~2.7",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "conflict": {
         "symfony/http-foundation": "<2.7.38|~2.8,<2.8.31"
diff --git a/src/Symfony/Component/Serializer/composer.json b/src/Symfony/Component/Serializer/composer.json
index bcacfbc754..e1bde54956 100644
--- a/src/Symfony/Component/Serializer/composer.json
+++ b/src/Symfony/Component/Serializer/composer.json
@@ -16,7 +16,8 @@
         }
     ],
     "require": {
-        "php": ">=5.3.9"
+        "php": ">=5.3.9",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "require-dev": {
         "symfony/yaml": "^2.0.5",
diff --git a/src/Symfony/Component/Templating/composer.json b/src/Symfony/Component/Templating/composer.json
index 334909c1a3..5ccb27c102 100644
--- a/src/Symfony/Component/Templating/composer.json
+++ b/src/Symfony/Component/Templating/composer.json
@@ -16,7 +16,8 @@
         }
     ],
     "require": {
-        "php": ">=5.3.9"
+        "php": ">=5.3.9",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "require-dev": {
         "psr/log": "~1.0"
diff --git a/src/Symfony/Component/Validator/composer.json b/src/Symfony/Component/Validator/composer.json
index e6db2e6907..7fe92bae77 100644
--- a/src/Symfony/Component/Validator/composer.json
+++ b/src/Symfony/Component/Validator/composer.json
@@ -17,6 +17,7 @@
     ],
     "require": {
         "php": ">=5.3.9",
+        "symfony/polyfill-ctype": "~1.8",
         "symfony/translation": "~2.4"
     },
     "require-dev": {
diff --git a/src/Symfony/Component/Yaml/composer.json b/src/Symfony/Component/Yaml/composer.json
index 03eb421d29..eeab73c355 100644
--- a/src/Symfony/Component/Yaml/composer.json
+++ b/src/Symfony/Component/Yaml/composer.json
@@ -16,7 +16,8 @@
         }
     ],
     "require": {
-        "php": ">=5.3.9"
+        "php": ">=5.3.9",
+        "symfony/polyfill-ctype": "~1.8"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Yaml\\": "" },