diff --git a/package.json b/package.json
index a88f7a57b..9b65fb20b 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "jest": "^24.9.0",
     "lint-staged": "^8.2.1",
     "npm-run-all": "^4.1.5",
-    "prettier": "^1.18.2",
+    "prettier": "^2.4.1",
     "sass": "^1.42.1",
     "sinon": "^7.5.0",
     "vuepress": "^1.8.2",
@@ -66,7 +66,7 @@
   },
   "lint-staged": {
     "{src,test}/**/*.js": [
-      "prettier --single-quote --print-width 100 --write",
+      "prettier --single-quote --print-width 120 --arrow-parens avoid --write",
       "git add"
     ]
   },
diff --git a/src/style_manager/index.js b/src/style_manager/index.js
index 7eafd21fc..56457868e 100644
--- a/src/style_manager/index.js
+++ b/src/style_manager/index.js
@@ -69,7 +69,7 @@ export default () => {
     events: {
       all: evAll,
       propertyUpdate: evPropUp,
-      custom: evCustom
+      custom: evCustom,
     },
 
     name: 'StyleManager',
@@ -96,21 +96,14 @@ export default () => {
       properties = new Properties();
       sectors = new Sectors([], c);
       this.model = new Model({ targets: [] });
-      const ev =
-        'component:toggled component:update:classes change:state change:device frame:resized selector:type';
-      this.model.listenTo(
-        em,
-        ev,
-        debounce(() => this.__upSel())
-      );
-      this.model.listenTo(
-        em,
-        'styleable:change',
-        debounce(() => {
-          this.__upProps();
-          this.__trgCustom();
-        })
-      );
+      const ev = 'component:toggled component:update:classes change:state change:device frame:resized selector:type';
+      const upAll = debounce(() => this.__upSel());
+      const upProps = debounce(() => {
+        this.__upProps();
+        this.__trgCustom();
+      });
+      this.model.listenTo(em, ev, upAll);
+      this.model.listenTo(em, 'styleable:change', upProps);
 
       return this;
     },
@@ -264,9 +257,7 @@ export default () => {
       let prop;
 
       if (sector) {
-        prop = sector
-          .get('properties')
-          .filter(prop => prop.get('property') === name || prop.get('id') === name)[0];
+        prop = sector.get('properties').filter(prop => prop.get('property') === name || prop.get('id') === name)[0];
       }
 
       return prop || null;
@@ -466,7 +457,7 @@ export default () => {
         return new type.view({
           model: new type.model(model),
           config: c,
-          ...view
+          ...view,
         });
       }
     },
@@ -546,7 +537,7 @@ export default () => {
         el,
         collection: sectors,
         target: c.em,
-        config: c
+        config: c,
       });
       return SectView.render().el;
     },
@@ -564,7 +555,7 @@ export default () => {
       const style = lastTarget.getStyle();
       const parentStyles = lastTargetParents.map(p => ({
         target: p,
-        style: p.getStyle()
+        style: p.getStyle(),
       }));
 
       sectors.map(sector => {
@@ -599,6 +590,6 @@ export default () => {
       SectView && SectView.remove();
       [c, properties, sectors, SectView].forEach(i => (i = {}));
       this.em = {};
-    }
+    },
   };
 };
diff --git a/yarn.lock b/yarn.lock
index a1869b0fb..65c5a06a7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2975,10 +2975,6 @@ caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
 
-cash-dom@^2.3.9:
-  version "2.3.9"
-  resolved "https://registry.yarnpkg.com/cash-dom/-/cash-dom-2.3.9.tgz#ff2e29cf3b3202e62596e1e8bb52edb95ea79fec"
-
 ccount@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/ccount/-/ccount-1.1.0.tgz#246687debb6014735131be8abab2d93898f8d043"
@@ -9002,6 +8998,10 @@ prettier@^1.18.2:
   version "1.19.1"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.1.tgz#f7d7f5ff8a9cd872a7be4ca142095956a60797cb"
 
+prettier@^2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.4.1.tgz#671e11c89c14a4cfc876ce564106c4a6726c9f5c"
+
 pretty-error@^2.0.2, pretty-error@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/pretty-error/-/pretty-error-2.1.2.tgz#be89f82d81b1c86ec8fdfbc385045882727f93b6"
@@ -10348,13 +10348,6 @@ string-length@^2.0.0:
     astral-regex "^1.0.0"
     strip-ansi "^4.0.0"
 
-string-replace-loader@^2.2.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/string-replace-loader/-/string-replace-loader-2.3.0.tgz#7f29be7d73c94dd92eccd5c5a15651181d7ecd3d"
-  dependencies:
-    loader-utils "^1.2.3"
-    schema-utils "^2.6.5"
-
 string-template@~0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/string-template/-/string-template-0.2.1.tgz#42932e598a352d01fc22ec3367d9d84eec6c9add"