diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 13a1db5..a690976 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -6,9 +6,8 @@ forking the repository and sending a pull request.
 
 When submitting code, please make every effort to follow existing conventions
 and style in order to keep the code as readable as possible. Please also make
-sure your code compiles by running `./gradlew check`. Checkstyle failures
-during compilation indicate errors in your style and can be viewed in the
-failing project's `build/reports/checkstyle` directory.
+sure your code compiles by running `./gradlew build`. For any formatting errors,
+run `./gradlew spotlessApply` to fix them.
 
 Before your code can be accepted into the project you must also sign the
 [Individual Contributor License Agreement (CLA)][1].
diff --git a/checkstyle.xml b/checkstyle.xml
deleted file mode 100644
index f66aad5..0000000
--- a/checkstyle.xml
+++ /dev/null
@@ -1,145 +0,0 @@
-<?xml version="1.0"?>
-<!DOCTYPE module PUBLIC
-    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
-    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
-
-<module name="Checker">
-  <module name="SuppressWarningsFilter"/>
-  <module name="NewlineAtEndOfFile"/>
-  <module name="FileLength"/>
-  <module name="FileTabCharacter"/>
-
-  <!-- Trailing spaces -->
-  <module name="RegexpSingleline">
-    <property name="format" value="\s+$"/>
-    <property name="message" value="Line has trailing spaces."/>
-  </module>
-
-  <!-- Space after 'for' and 'if' -->
-  <module name="RegexpSingleline">
-    <property name="format" value="^\s*(for|if)\b[^ ]"/>
-    <property name="message" value="Space needed before opening parenthesis."/>
-  </module>
-
-  <!-- For each spacing -->
-  <module name="RegexpSingleline">
-    <property name="format" value="^\s*for \(.*?([^ ]:|:[^ ])"/>
-    <property name="message" value="Space needed around ':' character."/>
-  </module>
-
-  <module name="TreeWalker">
-    <!-- Checks for Javadoc comments.                     -->
-    <!-- See http://checkstyle.sf.net/config_javadoc.html -->
-    <!--module name="JavadocMethod"/-->
-    <!--module name="JavadocType"/-->
-    <!--module name="JavadocVariable"/-->
-    <module name="JavadocStyle"/>
-
-
-    <!-- Checks for Naming Conventions.                  -->
-    <!-- See http://checkstyle.sf.net/config_naming.html -->
-    <!--<module name="ConstantName"/>-->
-    <module name="LocalFinalVariableName"/>
-    <module name="LocalVariableName"/>
-    <module name="MemberName"/>
-    <module name="MethodName"/>
-    <!--<module name="PackageName"/>-->
-    <module name="ParameterName"/>
-    <module name="StaticVariableName"/>
-    <module name="TypeName"/>
-
-
-    <!-- Checks for imports                              -->
-    <!-- See http://checkstyle.sf.net/config_import.html -->
-    <module name="AvoidStarImport"/>
-    <module name="IllegalImport"/>
-    <!-- defaults to sun.* packages -->
-    <module name="RedundantImport"/>
-    <module name="UnusedImports">
-      <property name="processJavadoc" value="true"/>
-    </module>
-
-
-    <!-- Checks for Size Violations.                    -->
-    <!-- See http://checkstyle.sf.net/config_sizes.html -->
-    <module name="LineLength">
-      <property name="max" value="100"/>
-    </module>
-    <module name="MethodLength">
-      <property name="max" value="200"/>
-    </module>
-
-
-    <!-- Checks for whitespace                               -->
-    <!-- See http://checkstyle.sf.net/config_whitespace.html -->
-    <module name="GenericWhitespace"/>
-    <!--<module name="EmptyForIteratorPad"/>-->
-    <module name="MethodParamPad"/>
-    <!--<module name="NoWhitespaceAfter"/>-->
-    <!--<module name="NoWhitespaceBefore"/>-->
-    <module name="OperatorWrap"/>
-    <module name="ParenPad"/>
-    <module name="TypecastParenPad"/>
-    <module name="WhitespaceAfter"/>
-    <module name="WhitespaceAround">
-      <property name="tokens"
-          value="ASSIGN, BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN,
-          COLON, DIV, DIV_ASSIGN, DO_WHILE, EQUAL, GE, GT, LAND, LCURLY, LE, LITERAL_CATCH,
-          LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF, LITERAL_RETURN,
-          LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS,
-          MINUS_ASSIGN, MOD, MOD_ASSIGN, NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION, SL, SLIST,
-          SL_ASSIGN, SR, SR_ASSIGN, STAR, STAR_ASSIGN, LITERAL_ASSERT, TYPE_EXTENSION_AND"/>
-    </module>
-
-
-    <!-- Modifier Checks                                    -->
-    <!-- See http://checkstyle.sf.net/config_modifiers.html -->
-    <module name="ModifierOrder"/>
-    <module name="RedundantModifier"/>
-
-
-    <!-- Checks for blocks. You know, those {}'s         -->
-    <!-- See http://checkstyle.sf.net/config_blocks.html -->
-    <module name="AvoidNestedBlocks"/>
-    <!--module name="EmptyBlock"/-->
-    <module name="LeftCurly"/>
-    <!--<module name="NeedBraces"/>-->
-    <module name="RightCurly"/>
-
-
-    <!-- Checks for common coding problems               -->
-    <!-- See http://checkstyle.sf.net/config_coding.html -->
-    <!--module name="AvoidInlineConditionals"/-->
-    <module name="CovariantEquals"/>
-    <module name="EmptyStatement"/>
-    <!--<module name="EqualsAvoidNull"/>-->
-    <module name="EqualsHashCode"/>
-    <!--module name="HiddenField"/-->
-    <module name="IllegalInstantiation"/>
-    <!--module name="InnerAssignment"/-->
-    <!--module name="MagicNumber"/-->
-    <!--module name="MissingSwitchDefault"/-->
-    <!--<module name="RedundantThrows"/>-->
-    <module name="SimplifyBooleanExpression"/>
-    <module name="SimplifyBooleanReturn"/>
-
-    <!-- Checks for class design                         -->
-    <!-- See http://checkstyle.sf.net/config_design.html -->
-    <!--module name="DesignForExtension"/-->
-    <!--<module name="FinalClass"/>-->
-    <module name="HideUtilityClassConstructor"/>
-    <module name="InterfaceIsType"/>
-    <!--module name="VisibilityModifier"/-->
-
-
-    <!-- Miscellaneous other checks.                   -->
-    <!-- See http://checkstyle.sf.net/config_misc.html -->
-    <module name="ArrayTypeStyle"/>
-    <!--module name="FinalParameters"/-->
-    <!--module name="TodoComment"/-->
-    <module name="UpperEll"/>
-
-    <!-- Make the @SuppressWarnings annotations available to Checkstyle -->
-    <module name="SuppressWarningsHolder"/>
-  </module>
-</module>
diff --git a/examples/src/main/java/com/squareup/moshi/recipes/FromJsonWithoutStrings.java b/examples/src/main/java/com/squareup/moshi/recipes/FromJsonWithoutStrings.java
index 1241477..4cb7ac4 100644
--- a/examples/src/main/java/com/squareup/moshi/recipes/FromJsonWithoutStrings.java
+++ b/examples/src/main/java/com/squareup/moshi/recipes/FromJsonWithoutStrings.java
@@ -45,7 +45,6 @@ public final class FromJsonWithoutStrings {
     new FromJsonWithoutStrings().run();
   }
 
-  @SuppressWarnings("checkstyle:membername")
   private static final class EventJson {
     String title;
     String begin_date;
diff --git a/examples/src/main/java/com/squareup/moshi/recipes/models/BlackjackHand.java b/examples/src/main/java/com/squareup/moshi/recipes/models/BlackjackHand.java
index a21d122..6d12b8d 100644
--- a/examples/src/main/java/com/squareup/moshi/recipes/models/BlackjackHand.java
+++ b/examples/src/main/java/com/squareup/moshi/recipes/models/BlackjackHand.java
@@ -17,7 +17,6 @@ package com.squareup.moshi.recipes.models;
 
 import java.util.List;
 
-@SuppressWarnings("checkstyle:membername")
 public final class BlackjackHand {
   public final Card hidden_card;
   public final List<Card> visible_cards;