diff --git a/src/language-html/ast.js b/src/language-html/ast.js
index 52b709ac6..1f57014ab 100644
--- a/src/language-html/ast.js
+++ b/src/language-html/ast.js
@@ -23,10 +23,9 @@ class Node {
       this[key] = cloneAndUpdateNodes(nodes, this);
       if (key === "attrs") {
         setNonEnumerableProperties(this, {
-          attrMap: this[key].reduce((reduced, attr) => {
-            reduced[attr.fullName] = attr.value;
-            return reduced;
-          }, Object.create(null)),
+          attrMap: fromPairs(
+            this[key].map((attr) => [attr.fullName, attr.value])
+          ),
         });
       }
     }
diff --git a/src/main/options.js b/src/main/options.js
index a12b5bcad..7ef963850 100644
--- a/src/main/options.js
+++ b/src/main/options.js
@@ -68,19 +68,18 @@ function normalize(options, opts = {}) {
   const plugin = getPlugin(rawOptions);
   rawOptions.printer = plugin.printers[rawOptions.astFormat];
 
-  const pluginDefaults = supportOptions
-    .filter(
-      (optionInfo) =>
-        optionInfo.pluginDefaults &&
-        optionInfo.pluginDefaults[plugin.name] !== undefined
-    )
-    .reduce(
-      (reduced, optionInfo) =>
-        Object.assign(reduced, {
-          [optionInfo.name]: optionInfo.pluginDefaults[plugin.name],
-        }),
-      {}
-    );
+  const pluginDefaults = fromPairs(
+    supportOptions
+      .filter(
+        (optionInfo) =>
+          optionInfo.pluginDefaults &&
+          optionInfo.pluginDefaults[plugin.name] !== undefined
+      )
+      .map((optionInfo) => [
+        optionInfo.name,
+        optionInfo.pluginDefaults[plugin.name],
+      ])
+  );
 
   const mixedDefaults = { ...defaults, ...pluginDefaults };
 
diff --git a/src/main/support.js b/src/main/support.js
index a6aa0d83f..613403152 100644
--- a/src/main/support.js
+++ b/src/main/support.js
@@ -1,5 +1,6 @@
 "use strict";
 
+const fromPairs = require("lodash/fromPairs");
 const semver = {
   compare: require("semver/functions/compare"),
   lt: require("semver/functions/lt"),
@@ -64,16 +65,15 @@ function getSupportInfo({
         }
       }
 
-      const pluginDefaults = plugins
-        .filter(
-          (plugin) =>
-            plugin.defaultOptions &&
-            plugin.defaultOptions[option.name] !== undefined
-        )
-        .reduce((reduced, plugin) => {
-          reduced[plugin.name] = plugin.defaultOptions[option.name];
-          return reduced;
-        }, {});
+      const pluginDefaults = fromPairs(
+        plugins
+          .filter(
+            (plugin) =>
+              plugin.defaultOptions &&
+              plugin.defaultOptions[option.name] !== undefined
+          )
+          .map((plugin) => [plugin.name, plugin.defaultOptions[option.name]])
+      );
 
       return { ...option, pluginDefaults };
     });