diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 778f80c3..8c8d7d47 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -267,7 +267,12 @@ jobs:
       - uses: actions/download-artifact@v2
         with:
           path: build
-      - run: composer infect:ci:${{ matrix.test-group }}
+      - if: ${{ matrix.test-group == 'unit' }}
+        run: composer infect:ci:unit
+        env:
+          INFECTION_BADGE_API_KEY: ${{ secrets.INFECTION_BADGE_API_KEY }}
+      - if: ${{ matrix.test-group == 'db' }}
+        run: composer infect:ci:db
 
   upload-coverage:
     needs:
diff --git a/README.md b/README.md
index cd15bb5c..ce91829f 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 [![Build Status](https://img.shields.io/github/workflow/status/shlinkio/shlink/Continuous%20integration/develop?logo=github&style=flat-square)](https://github.com/shlinkio/shlink/actions?query=workflow%3A%22Continuous+integration%22)
 [![Code Coverage](https://img.shields.io/codecov/c/gh/shlinkio/shlink/develop?style=flat-square)](https://app.codecov.io/gh/shlinkio/shlink)
+[![Infection MSI](https://img.shields.io/endpoint?style=flat-square&url=https%3A%2F%2Fbadge-api.stryker-mutator.io%2Fgithub.com%2Fshlinkio%2Fshlink%2Fdevelop)](https://dashboard.stryker-mutator.io/reports/github.com/shlinkio/shlink/develop)
 [![Latest Stable Version](https://img.shields.io/github/release/shlinkio/shlink.svg?style=flat-square)](https://packagist.org/packages/shlinkio/shlink)
 [![Docker pulls](https://img.shields.io/docker/pulls/shlinkio/shlink.svg?logo=docker&style=flat-square)](https://hub.docker.com/r/shlinkio/shlink/)
 [![License](https://img.shields.io/github/license/shlinkio/shlink.svg?style=flat-square)](https://github.com/shlinkio/shlink/blob/main/LICENSE)
diff --git a/infection.json b/infection.json
index b182bddf..1b4ed6b5 100644
--- a/infection.json
+++ b/infection.json
@@ -8,7 +8,10 @@
     "logs": {
         "text": "build/infection-unit/infection-log.txt",
         "summary": "build/infection-unit/summary-log.txt",
-        "debug": "build/infection-unit/debug-log.txt"
+        "debug": "build/infection-unit/debug-log.txt",
+        "badge": {
+            "branch": "develop"
+        }
     },
     "tmpDir": "build/infection-unit/temp",
     "phpUnit": {
diff --git a/module/Core/src/Tag/Model/TagRenaming.php b/module/Core/src/Tag/Model/TagRenaming.php
index 1f677376..3bdae21c 100644
--- a/module/Core/src/Tag/Model/TagRenaming.php
+++ b/module/Core/src/Tag/Model/TagRenaming.php
@@ -10,20 +10,13 @@ use function sprintf;
 
 final class TagRenaming
 {
-    private string $oldName;
-    private string $newName;
-
-    private function __construct()
+    private function __construct(private string $oldName, private string $newName)
     {
     }
 
     public static function fromNames(string $oldName, string $newName): self
     {
-        $o = new self();
-        $o->oldName = $oldName;
-        $o->newName = $newName;
-
-        return $o;
+        return new self($oldName, $newName);
     }
 
     public static function fromArray(array $payload): self