diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3433aaf..474fe79 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,5 +1,8 @@
 name: 'Test the action'
-on: [pull_request]
+on:
+  pull_request:
+    branches:
+      - master
 
 jobs:
   test-json:
@@ -502,21 +505,24 @@ jobs:
           EXPECTED_TAG: 'v1.5.0'
         with:
           github-token: ${{ secrets.github_token }}
-          version-file: 'test-file.json, test-file.toml, test-file.yaml'
+          version-file: 'test-file.json, test-file-2.json, test-file.toml, test-file.yaml'
 
       - name: Show files
         run: |
-          echo "$(<test-file.json)"
-          echo ""
-          echo "$(<test-file.toml)"
-          echo ""
-          echo "$(<test-file.yaml)"
+          echo "Test json file"
+          echo "$(<test-file.json)\n\n"
+          echo "Test json 2 file"
+          echo "$(<test-file-2.json)\n\n"
+          echo "Test toml file"
+          echo "$(<test-file.toml)\n\n"
+          echo "Test yaml file"
+          echo "$(<test-file.yaml)\n\n"
 
       - name: Test output
         run: node ./test-output.js
         env:
-          FILES: 'test-file.json, test-file.toml, test-file.yaml'
-          EXPECTED_VERSION: '1.5.0, 1.5.0, 1.11.0'
+          FILES: 'test-file.json, test-file-2.json, test-file.toml, test-file.yaml'
+          EXPECTED_VERSION: '1.5.0, 1.5.0, 1.5.0, 1.11.0'
 
   test-config-file-path:
     runs-on: ubuntu-latest
diff --git a/src/version/git.js b/src/version/git.js
index 38de4cb..8737685 100644
--- a/src/version/git.js
+++ b/src/version/git.js
@@ -4,7 +4,7 @@ const gitSemverTags = require('git-semver-tags')
 const BaseVersioning = require('./base')
 const bumpVersion = require('../helpers/bumpVersion')
 
-module.exports = new (class Git extends BaseVersioning {
+module.exports = class Git extends BaseVersioning {
 
   bump = (releaseType) => {
     return new Promise((resolve) => {
@@ -27,5 +27,4 @@ module.exports = new (class Git extends BaseVersioning {
     })
   }
 
-})
-
+}
diff --git a/src/version/index.js b/src/version/index.js
index 6f9a80b..f3520e4 100644
--- a/src/version/index.js
+++ b/src/version/index.js
@@ -6,17 +6,17 @@ const Toml = require('./toml')
 module.exports = (fileExtension) => {
   switch (fileExtension.toLowerCase()) {
     case 'json':
-      return Json
+      return new Json()
 
     case 'yaml':
     case 'yml':
-      return Yaml
+      return new Yaml()
 
     case 'toml':
-      return Toml
+      return new Toml()
 
     case 'git':
-      return Git
+      return new Git()
 
     default:
       return null
diff --git a/src/version/json.js b/src/version/json.js
index 88f34f0..dff17a5 100644
--- a/src/version/json.js
+++ b/src/version/json.js
@@ -4,7 +4,7 @@ const objectPath = require('object-path')
 const BaseVersioning = require('./base')
 const bumpVersion = require('../helpers/bumpVersion')
 
-module.exports = new (class Json extends BaseVersioning {
+module.exports = class Json extends BaseVersioning {
 
   /**
    * Bumps the version in the package.json
@@ -49,5 +49,5 @@ module.exports = new (class Json extends BaseVersioning {
     )
   }
 
-})
+}
 
diff --git a/src/version/toml.js b/src/version/toml.js
index ce08a66..813b69c 100644
--- a/src/version/toml.js
+++ b/src/version/toml.js
@@ -5,7 +5,7 @@ const toml = require('@iarna/toml')
 const BaseVersioning = require('./base')
 const bumpVersion = require('../helpers/bumpVersion')
 
-module.exports = new (class Toml extends BaseVersioning {
+module.exports = class Toml extends BaseVersioning {
 
   /**
    * Bumps the version in the package.json
@@ -46,5 +46,5 @@ module.exports = new (class Toml extends BaseVersioning {
     }
   }
 
-})
+}
 
diff --git a/src/version/yaml.js b/src/version/yaml.js
index be9b72b..b82acac 100644
--- a/src/version/yaml.js
+++ b/src/version/yaml.js
@@ -5,7 +5,7 @@ const yaml = require('yaml')
 const BaseVersioning = require('./base')
 const bumpVersion = require('../helpers/bumpVersion')
 
-module.exports = new (class Yaml extends BaseVersioning {
+module.exports = class Yaml extends BaseVersioning {
 
   /**
    * Bumps the version in the package.json
@@ -53,5 +53,4 @@ module.exports = new (class Yaml extends BaseVersioning {
     }
   }
 
-})
-
+}
diff --git a/test-file-2.json b/test-file-2.json
new file mode 100644
index 0000000..2f7abc1
--- /dev/null
+++ b/test-file-2.json
@@ -0,0 +1,4 @@
+{
+  "name": "Test JSON file 2",
+  "version": "1.4.5"
+}
diff --git a/test-output.js b/test-output.js
index 8ae7821..495efb0 100644
--- a/test-output.js
+++ b/test-output.js
@@ -18,6 +18,8 @@ assert.ok(FILES, 'Files not defined!')
  * Test if all the files are updated
  */
 FILES.split(',').map((file, index) => {
+  console.log(`Going to test file "${file}"`)
+
   const fileContent = fs.readFileSync(file.trim(), 'utf8')
   const fileExtension = file.split('.').pop()
 
@@ -43,8 +45,12 @@ FILES.split(',').map((file, index) => {
       assert.fail('File extension not supported!')
   }
 
+  console.log(`"${file}" has a valid extension "${fileExtension.toLowerCase()}"`)
+
   assert.ok(parsedContent, 'Content could not be parsed!')
 
+  console.log(`"${file}" has valid content`, parsedContent)
+
   const newVersionInFile = objectPath.get(parsedContent, EXPECTED_VERSION_PATH, null)
 
   const expectedVersions = EXPECTED_VERSION.split(',')
@@ -52,6 +58,8 @@ FILES.split(',').map((file, index) => {
     ? expectedVersions[index]
     : expectedVersions
 
+  console.log(`"${file}" check if "${newVersionInFile}" matches what is expected "${expectedVersion.trim()}"`)
+
   assert.strictEqual(newVersionInFile, expectedVersion.trim(), 'Version does not match what is expected')
 })