diff --git a/lib/src/main/java/com/diffplug/spotless/npm/PrettierFormatterStep.java b/lib/src/main/java/com/diffplug/spotless/npm/PrettierFormatterStep.java
index 2a71ff893e..d9c470b5d9 100644
--- a/lib/src/main/java/com/diffplug/spotless/npm/PrettierFormatterStep.java
+++ b/lib/src/main/java/com/diffplug/spotless/npm/PrettierFormatterStep.java
@@ -42,7 +42,7 @@ public class PrettierFormatterStep {
 	public static final String NAME = "prettier-format";
 
 	public static final Map<String, String> defaultDevDependencies() {
-		return defaultDevDependenciesWithPrettier("1.16.4");
+		return defaultDevDependenciesWithPrettier("2.0.5");
 	}
 
 	public static final Map<String, String> defaultDevDependenciesWithPrettier(String version) {
diff --git a/lib/src/main/java/com/diffplug/spotless/npm/TsFmtFormatterStep.java b/lib/src/main/java/com/diffplug/spotless/npm/TsFmtFormatterStep.java
index 1a948bd366..e815ea1f63 100644
--- a/lib/src/main/java/com/diffplug/spotless/npm/TsFmtFormatterStep.java
+++ b/lib/src/main/java/com/diffplug/spotless/npm/TsFmtFormatterStep.java
@@ -59,8 +59,8 @@ public static Map<String, String> defaultDevDependencies() {
 	public static Map<String, String> defaultDevDependenciesWithTsFmt(String typescriptFormatter) {
 		TreeMap<String, String> defaults = new TreeMap<>();
 		defaults.put("typescript-formatter", typescriptFormatter);
-		defaults.put("typescript", "3.3.3");
-		defaults.put("tslint", "5.12.1");
+		defaults.put("typescript", "3.9.5");
+		defaults.put("tslint", "6.1.2");
 		return defaults;
 	}
 
diff --git a/plugin-gradle/README.md b/plugin-gradle/README.md
index ea07c07777..5b2835d70b 100644
--- a/plugin-gradle/README.md
+++ b/plugin-gradle/README.md
@@ -425,7 +425,7 @@ spotless {
     target '**/*.css', '**/*.scss'
 
     // at least provide the parser to use
-    prettier().config(['parser': 'postcss'])
+    prettier().config(['parser': 'css'])
     // prettier('1.16.4') to specify specific version of prettier
     // prettier(['my-prettier-fork': '1.16.4']) to specify exactly which npm packages to use
 
@@ -447,7 +447,7 @@ spotless {
     prettier().configFile('/path-to/.prettierrc.yml')
 
     // or provide both (config options take precedence over configFile options)
-    prettier().config(['parser': 'postcss']).configFile('path-to/.prettierrc.yml')
+    prettier().config(['parser': 'css']).configFile('path-to/.prettierrc.yml')
   }
 }
 ```
diff --git a/testlib/src/main/resources/npm/prettier/filetypes/css/.prettierrc.yml b/testlib/src/main/resources/npm/prettier/filetypes/css/.prettierrc.yml
index 9919fdc796..1141920e4e 100644
--- a/testlib/src/main/resources/npm/prettier/filetypes/css/.prettierrc.yml
+++ b/testlib/src/main/resources/npm/prettier/filetypes/css/.prettierrc.yml
@@ -1 +1 @@
-parser: postcss
+parser: css
diff --git a/testlib/src/main/resources/npm/prettier/filetypes/javascript-es5/javascript-es5.clean b/testlib/src/main/resources/npm/prettier/filetypes/javascript-es5/javascript-es5.clean
index 86cbfca970..29002f6b05 100644
--- a/testlib/src/main/resources/npm/prettier/filetypes/javascript-es5/javascript-es5.clean
+++ b/testlib/src/main/resources/npm/prettier/filetypes/javascript-es5/javascript-es5.clean
@@ -18,7 +18,7 @@ var numbers = [
   17,
   18,
   19,
-  20
+  20,
 ];
 
 var p = {
@@ -26,7 +26,7 @@ var p = {
   last: "Pan",
   get fullName() {
     return this.first + " " + this.last;
-  }
+  },
 };
 
 var str = "Hello, world!";
diff --git a/testlib/src/main/resources/npm/prettier/filetypes/javascript-es6/javascript-es6.clean b/testlib/src/main/resources/npm/prettier/filetypes/javascript-es6/javascript-es6.clean
index 6737291a0a..d4e982d69f 100644
--- a/testlib/src/main/resources/npm/prettier/filetypes/javascript-es6/javascript-es6.clean
+++ b/testlib/src/main/resources/npm/prettier/filetypes/javascript-es6/javascript-es6.clean
@@ -18,7 +18,7 @@ var numbers = [
   17,
   18,
   19,
-  20
+  20,
 ];
 
 const p = {
@@ -26,7 +26,7 @@ const p = {
   last: "Pan",
   get fullName() {
     return this.first + " " + this.last;
-  }
+  },
 };
 
 const str = "Hello, world!";
diff --git a/testlib/src/main/resources/npm/prettier/filetypes/scss/.prettierrc.yml b/testlib/src/main/resources/npm/prettier/filetypes/scss/.prettierrc.yml
index 9919fdc796..1141920e4e 100644
--- a/testlib/src/main/resources/npm/prettier/filetypes/scss/.prettierrc.yml
+++ b/testlib/src/main/resources/npm/prettier/filetypes/scss/.prettierrc.yml
@@ -1 +1 @@
-parser: postcss
+parser: css