diff --git a/core/composer.json b/core/composer.json
index 3970b28..b0472ee 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -172,8 +172,7 @@
     "scripts": {
         "pre-autoload-dump": "Drupal\\Core\\Composer\\Composer::preAutoloadDump",
         "post-autoload-dump": [
-          "Drupal\\Core\\Composer\\Composer::ensureHtaccess",
-          "Drupal\\Core\\Composer\\Composer::configurePhpcs"
+          "Drupal\\Core\\Composer\\Composer::ensureHtaccess"
         ]
     }
 }
diff --git a/core/lib/Drupal/Core/Composer/Composer.php b/core/lib/Drupal/Core/Composer/Composer.php
index b2dc781..012b0d7 100644
--- a/core/lib/Drupal/Core/Composer/Composer.php
+++ b/core/lib/Drupal/Core/Composer/Composer.php
@@ -6,7 +6,6 @@
 use Composer\Script\Event;
 use Composer\Installer\PackageEvent;
 use Composer\Semver\Constraint\Constraint;
-use PHP_CodeSniffer;
 
 /**
  * Provides static functions for composer script events.
@@ -138,28 +137,6 @@ public static function ensureHtaccess(Event $event) {
   }
 
   /**
-   * Configures phpcs if present.
-   *
-   * @param \Composer\Script\Event $event
-   */
-  public static function configurePhpcs(Event $event) {
-    // Grab the local repo which tells us what's been installed.
-    $local_repository = $event->getComposer()
-      ->getRepositoryManager()
-      ->getLocalRepository();
-    // Make sure both phpcs and coder are installed.
-    $phpcs_package = $local_repository->findPackage('squizlabs/php_codesniffer', '*');
-    $coder_package = $local_repository->findPackage('drupal/coder', '*');
-    if (!empty($phpcs_package) && !empty($coder_package)) {
-      $config = $event->getComposer()->getConfig();
-      $vendor_dir = $config->get('vendor-dir');
-      // Set phpcs' installed_paths config to point to our coder_sniffer
-      // directory.
-      PHP_CodeSniffer::setConfigData('installed_paths', $vendor_dir . '/drupal/coder/coder_sniffer');
-    }
-  }
-
-  /**
    * Remove possibly problematic test files from vendored projects.
    *
    * @param \Composer\Installer\PackageEvent $event
diff --git a/core/phpcs.xml.dist b/core/phpcs.xml.dist
index e82c85a..e668599 100644
--- a/core/phpcs.xml.dist
+++ b/core/phpcs.xml.dist
@@ -12,16 +12,16 @@
 
   <!-- Only include specific sniffs that pass. This ensures that, if new sniffs are added, HEAD does not fail.-->
   <!-- Drupal sniffs -->
-  <rule ref="Drupal.Classes.ClassCreateInstance"/>
-  <rule ref="Drupal.Classes.ClassDeclaration"/>
-  <rule ref="Drupal.Classes.FullyQualifiedNamespace"/>
-  <rule ref="Drupal.Classes.UnusedUseStatement"/>
-  <rule ref="Drupal.CSS.ClassDefinitionNameSpacing"/>
-  <rule ref="Drupal.CSS.ColourDefinition"/>
-  <rule ref="Drupal.Commenting.ClassComment">
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Classes/ClassCreateInstanceSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Classes/ClassDeclarationSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Classes/FullyQualifiedNamespaceSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Classes/UnusedUseStatementSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/CSS/ClassDefinitionNameSpacingSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/CSS/ColourDefinitionSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Commenting/ClassCommentSniff.php">
     <exclude name="Drupal.Commenting.ClassComment.Missing"/>
   </rule>
-  <rule ref="Drupal.Commenting.DocComment">
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Commenting/DocCommentSniff.php">
     <!-- Sniff for these errors: SpacingAfterTagGroup, WrongEnd, SpacingBetween,
       ContentAfterOpen, SpacingBeforeShort, TagValueIndent, ShortStartSpace,
       SpacingAfter -->
@@ -41,9 +41,9 @@
     <exclude name="Drupal.Commenting.DocComment.TagGroupSpacing"/>
     <exclude name="Drupal.Commenting.DocComment.MissingShort"/>
   </rule>
-  <rule ref="Drupal.Commenting.DocCommentStar"/>
-  <rule ref="Drupal.Commenting.FileComment"/>
-  <rule ref="Drupal.Commenting.FunctionComment">
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Commenting/DocCommentStarSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Commenting/FileCommentSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Commenting/FunctionCommentSniff.php">
     <exclude name="Drupal.Commenting.FunctionComment.IncorrectTypeHint"/>
     <exclude name="Drupal.Commenting.FunctionComment.InvalidNoReturn"/>
     <exclude name="Drupal.Commenting.FunctionComment.InvalidReturnNotVoid"/>
@@ -59,37 +59,37 @@
     <exclude name="Drupal.Commenting.FunctionComment.ParamNameNoMatch"/>
     <exclude name="Drupal.Commenting.FunctionComment.TypeHintMissing"/>
   </rule>
-  <rule ref="Drupal.ControlStructures.ElseIf"/>
-  <rule ref="Drupal.ControlStructures.ControlSignature"/>
-  <rule ref="Drupal.Files.EndFileNewline"/>
-  <rule ref="Drupal.Files.TxtFileLineLength"/>
-  <rule ref="Drupal.Formatting.SpaceInlineIf"/>
-  <rule ref="Drupal.Formatting.SpaceUnaryOperator"/>
-  <rule ref="Drupal.Functions.DiscouragedFunctions"/>
-  <rule ref="Drupal.Functions.FunctionDeclaration.SpaceAfter"/>
-  <rule ref="Drupal.Functions.FunctionDeclaration.SpaceBeforeParenthesis"/>
-  <rule ref="Drupal.InfoFiles.AutoAddedKeys"/>
-  <rule ref="Drupal.InfoFiles.ClassFiles"/>
-  <rule ref="Drupal.InfoFiles.DuplicateEntry"/>
-  <rule ref="Drupal.InfoFiles.Required"/>
-  <rule ref="Drupal.Semantics.EmptyInstall"/>
-  <rule ref="Drupal.Semantics.FunctionT">
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/ControlStructures/ElseIfSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/ControlStructures/ControlSignatureSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Files/EndFileNewlineSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Files/TxtFileLineLengthSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Formatting/SpaceInlineIfSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Formatting/SpaceUnaryOperatorSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Functions/DiscouragedFunctionsSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Functions/FunctionDeclarationSniff.php"/>
+
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/InfoFiles/AutoAddedKeysSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/InfoFiles/ClassFilesSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/InfoFiles/DuplicateEntrySniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/InfoFiles/RequiredSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/EmptyInstallSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/FunctionTSniff.php">
     <exclude name="Drupal.Semantics.FunctionT.BackslashSingleQuote"/>
     <exclude name="Drupal.Semantics.FunctionT.NotLiteralString"/>
     <exclude name="Drupal.Semantics.FunctionT.ConcatString"/>
   </rule>
-  <rule ref="Drupal.Semantics.FunctionWatchdog"/>
-  <rule ref="Drupal.Semantics.InstallHooks"/>
-  <rule ref="Drupal.Semantics.LStringTranslatable"/>
-  <rule ref="Drupal.Semantics.PregSecurity"/>
-  <rule ref="Drupal.Semantics.TInHookMenu"/>
-  <rule ref="Drupal.Semantics.TInHookSchema"/>
-  <rule ref="Drupal.WhiteSpace.Comma"/>
-  <rule ref="Drupal.WhiteSpace.ObjectOperatorIndent"/>
-  <rule ref="Drupal.WhiteSpace.ObjectOperatorSpacing"/>
-  <rule ref="Drupal.WhiteSpace.OpenTagNewline"/>
-  <rule ref="Drupal.WhiteSpace.OperatorSpacing"/>
-  <rule ref="Drupal.WhiteSpace.ScopeIndent"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/FunctionWatchdogSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/InstallHooksSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/LStringTranslatableSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/PregSecuritySniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/TInHookMenuSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/TInHookSchemaSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/CommaSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/ObjectOperatorIndentSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/ObjectOperatorSpacingSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/OpenTagNewlineSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/OperatorSpacingSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/ScopeIndentSniff.php"/>
 
   <!-- Generic sniffs -->
   <rule ref="Generic.Files.LineEndings"/>
