diff --git a/.github/workflows/phpunit-lowest.yml b/.github/workflows/phpunit-lowest.yml
new file mode 100644
index 0000000..4f06a64
--- /dev/null
+++ b/.github/workflows/phpunit-lowest.yml
@@ -0,0 +1,94 @@
+# This workflow runs tests on MySQLi with the lowest PHP version and Composer dependencies.
+name: PHPUnit Lowest
+
+on:
+  pull_request:
+    branches:
+      - develop
+    paths:
+      - '**.php'
+      - 'composer.*'
+      - 'phpunit*'
+      - '.github/workflows/phpunit.yml'
+  push:
+    branches:
+      - develop
+    paths:
+      - '**.php'
+      - 'composer.*'
+      - 'phpunit*'
+      - '.github/workflows/phpunit.yml'
+  workflow_call:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  main:
+    name: PHP ${{ matrix.php-versions }} - ${{ matrix.db-platforms }} - ${{ matrix.dependencies }}
+    runs-on: ubuntu-latest
+    if: "!contains(github.event.head_commit.message, '[ci skip]')"
+    strategy:
+      matrix:
+        php-versions: ['7.4']
+        db-platforms: ['MySQLi']
+        mysql-versions: ['5.7']
+        dependencies: ['lowest']
+
+    services:
+      mysql:
+        image: mysql:${{ matrix.mysql-versions }}
+        env:
+          MYSQL_ALLOW_EMPTY_PASSWORD: yes
+          MYSQL_DATABASE: test
+        ports:
+          - 3306:3306
+        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
+
+    steps:
+      - name: Check disk space
+        run: df -h
+
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+          tools: composer, phive, phpunit
+          extensions: intl, json, mbstring, gd, xdebug, xml, sqlite3
+          coverage: xdebug
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Get composer cache directory
+        run: echo "COMPOSER_CACHE_FILES_DIR=$(composer config cache-files-dir)" >> $GITHUB_ENV
+
+      - name: Cache composer dependencies
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.COMPOSER_CACHE_FILES_DIR }}
+          key: ${{ runner.os }}-composer-lowest-${{ hashFiles('**/composer.json') }}-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-lowest-
+
+      - name: Install dependencies
+        run: |
+          if [ -f composer.lock ]; then
+            composer install ${{ env.COMPOSER_UPDATE_FLAGS }} --no-progress --no-interaction --prefer-dist --optimize-autoloader
+          else
+            composer update ${{ env.COMPOSER_UPDATE_FLAGS }} --no-progress --no-interaction --prefer-dist --optimize-autoloader
+          fi
+        env:
+          COMPOSER_UPDATE_FLAGS: ${{ matrix.dependencies == 'lowest' && '--prefer-lowest' || '' }}
+
+      - name: Test with PHPUnit
+        run: vendor/bin/phpunit --verbose --coverage-text --testsuite main
+        env:
+          DB: ${{ matrix.db-platforms }}
+          TERM: xterm-256color
+          TACHYCARDIA_MONITOR_GA: enabled
diff --git a/.github/workflows/phpunit-no-db.yml b/.github/workflows/phpunit-no-db.yml
index bc6f9c4..77f71de 100644
--- a/.github/workflows/phpunit-no-db.yml
+++ b/.github/workflows/phpunit-no-db.yml
@@ -38,6 +38,9 @@ jobs:
         dependencies: ['highest', 'lowest']
 
     steps:
+      - name: Check disk space
+        run: df -h
+
       - name: Checkout
         uses: actions/checkout@v4
 
diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index adf5304..518c54e 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -29,7 +29,7 @@ permissions:
 
 jobs:
   main:
-    name: PHP ${{ matrix.php-versions }} - ${{ matrix.db-platforms }} - ${{ matrix.dependencies }}
+    name: PHP ${{ matrix.php-versions }} - ${{ matrix.db-platforms }}
     runs-on: ubuntu-latest
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
     strategy:
@@ -43,27 +43,18 @@ jobs:
           - php-versions: '7.4'
             db-platforms: MySQLi
             mysql-versions: '8.0'
-            dependencies: 'highest'
-          # Lowest Dependency
-          - php-versions: '7.4'
-            db-platforms: MySQLi
-            mysql-versions: '5.7'
-            dependencies: 'lowest'
           # Postgre
           - php-versions: '7.4'
             db-platforms: Postgre
             mysql-versions: '5.7'
-            dependencies: 'highest'
           # SQLSRV
           - php-versions: '7.4'
             db-platforms: SQLSRV
             mysql-versions: '5.7'
-            dependencies: 'highest'
           # OCI8
           - php-versions: '7.4'
             db-platforms: OCI8
             mysql-versions: '5.7'
-            dependencies: 'highest'
 
     services:
       mysql:
@@ -104,6 +95,22 @@ jobs:
         options: --health-cmd="/opt/oracle/product/18c/dbhomeXE/bin/sqlplus -s sys/Oracle18@oracledbxe/XE as sysdba <<< 'SELECT 1 FROM DUAL'" --health-interval=10s --health-timeout=5s --health-retries=3
 
     steps:
+      - name: Free Disk Space (Ubuntu)
+        uses: jlumbroso/free-disk-space@main
+        with:
+          # this might remove tools that are actually needed,
+          # if set to "true" but frees about 6 GB
+          tool-cache: false
+
+          # all of these default to true, but feel free to set to
+          # "false" if necessary for your workflow
+          android: true
+          dotnet: true
+          haskell: true
+          large-packages: false
+          docker-images: true
+          swap-storage: true
+
       - name: Create database for MSSQL Server
         if: matrix.db-platforms == 'SQLSRV'
         run: sqlcmd -S 127.0.0.1 -U sa -P 1Secure*Password1 -Q "CREATE DATABASE test"