diff --git a/action.yml b/action.yml
index cb9b529..f5c5489 100644
--- a/action.yml
+++ b/action.yml
@@ -10,10 +10,8 @@ inputs:
     default: master
   extra_plugins:
     description: 'Extra plugins for pre-install'
-    default: ''
   dry_run:
     description: 'Whether to run semantic release in "dry-run" mode. It will override the dryRun attribute in your configuration file'
-    default: ''
 outputs:
   new_release_published:
     description: 'Whether a new release was published'
diff --git a/src/handleOptions.js b/src/handleOptions.js
index 0dfe7c5..393c19a 100644
--- a/src/handleOptions.js
+++ b/src/handleOptions.js
@@ -6,7 +6,7 @@ const inputs = require('./inputs.json');
  * @returns {{}|{dryRun: boolean}}
  */
 exports.handleDryRunOption = () => {
-  const dryRun = core.getInput(inputs.dry_run, {required: false}) || '';
+  const dryRun = core.getInput(inputs.dry_run);
 
   switch (dryRun) {
     case 'true':
diff --git a/src/index.js b/src/index.js
index 3b8bc5b..e1a4b5c 100644
--- a/src/index.js
+++ b/src/index.js
@@ -16,7 +16,7 @@ const release = async () => {
   await setUpJob();
   await preInstallPlugins();
 
-  const branch = core.getInput(inputs.branch, {required: false}) || 'master';
+  const branch = core.getInput(inputs.branch) || 'master';
   const result = await semanticRelease({
     branch,
     ...(handleDryRunOption()),
diff --git a/src/preInstallPlugins.task.js b/src/preInstallPlugins.task.js
index b0ea0a9..686fbb3 100644
--- a/src/preInstallPlugins.task.js
+++ b/src/preInstallPlugins.task.js
@@ -1,26 +1,29 @@
 const path = require('path');
 const core = require('@actions/core');
 const exec = require('./_exec');
+const inputs = require('./inputs.json');
 
 /**
  * Pre-install plugins
- * @returns {Promise<never>}
+ * @returns {Promise<void>}
  */
 module.exports = async () => {
-  const extraPlugins = core.getInput('extra_plugins', {required: false}) || '';
+  const extraPlugins = core.getInput(inputs.extra_plugins);
 
-  if (extraPlugins) {
-    const _extraPlugins = extraPlugins
-      .replace(/['"]/g, '')
-      .replace(/[\n\r]/g, ' ');
+  if (!extraPlugins) {
+    return Promise.resolve();
+  }
 
-    const {stdout, stderr} = await exec(`npm install ${_extraPlugins}`, {
-      cwd: path.resolve(__dirname)
-    });
-    core.debug(stdout);
+  const _extraPlugins = extraPlugins
+    .replace(/['"]/g, '')
+    .replace(/[\n\r]/g, ' ');
 
-    if (stderr) {
-      return Promise.reject(stderr);
-    }
+  const {stdout, stderr} = await exec(`npm install ${_extraPlugins}`, {
+    cwd: path.resolve(__dirname)
+  });
+  core.debug(stdout);
+
+  if (stderr) {
+    return Promise.reject(stderr);
   }
 };