diff --git a/src/PhpPresentation/Shape/Chart/Series.php b/src/PhpPresentation/Shape/Chart/Series.php
index ede269d5a..c29fd1e8a 100644
--- a/src/PhpPresentation/Shape/Chart/Series.php
+++ b/src/PhpPresentation/Shape/Chart/Series.php
@@ -153,7 +153,7 @@ public function __construct(string $title = 'Series Title', array $values = [])
     {
         $this->fill = new Fill();
         $this->font = new Font();
-        $this->font->setName('Calibri');
+        $this->font->setName();
         $this->font->setSize(9);
         $this->marker = new Marker();
 
diff --git a/src/PhpPresentation/Shape/Chart/Title.php b/src/PhpPresentation/Shape/Chart/Title.php
index a03165724..616ed90a0 100644
--- a/src/PhpPresentation/Shape/Chart/Title.php
+++ b/src/PhpPresentation/Shape/Chart/Title.php
@@ -99,7 +99,7 @@ public function __construct()
     {
         $this->alignment = new Alignment();
         $this->font = new Font();
-        $this->font->setName('Calibri');
+        $this->font->setName();
         $this->font->setSize(18);
     }
 
diff --git a/src/PhpPresentation/Style/Bullet.php b/src/PhpPresentation/Style/Bullet.php
index dd3729d5d..70509ff7d 100644
--- a/src/PhpPresentation/Style/Bullet.php
+++ b/src/PhpPresentation/Style/Bullet.php
@@ -128,7 +128,7 @@ class Bullet implements ComparableInterface
     public function __construct()
     {
         $this->bulletType = self::TYPE_NONE;
-        $this->bulletFont = 'Calibri';
+        $this->bulletFont = 'Lato';
         $this->bulletChar = '-';
         $this->bulletColor = new Color();
         $this->bulletNumericStyle = self::NUMERIC_DEFAULT;
@@ -176,10 +176,10 @@ public function getBulletFont()
      *
      * @return \PhpOffice\PhpPresentation\Style\Bullet
      */
-    public function setBulletFont($pValue = 'Calibri')
+    public function setBulletFont($pValue = 'Lato')
     {
         if ('' == $pValue) {
-            $pValue = 'Calibri';
+            $pValue = 'Lato';
         }
         $this->bulletFont = $pValue;
 
diff --git a/src/PhpPresentation/Style/Font.php b/src/PhpPresentation/Style/Font.php
index 2e25b257a..aee27d20f 100644
--- a/src/PhpPresentation/Style/Font.php
+++ b/src/PhpPresentation/Style/Font.php
@@ -56,7 +56,7 @@ class Font implements ComparableInterface
      *
      * @var string
      */
-    private $name = 'Calibri';
+    private $name = 'Lato';
 
     /**
      * Font Size.
@@ -157,10 +157,10 @@ public function getName(): string
      *
      * @return self
      */
-    public function setName(string $pValue = 'Calibri'): self
+    public function setName(string $pValue = 'Lato'): self
     {
         if ('' == $pValue) {
-            $pValue = 'Calibri';
+            $pValue = 'Lato';
         }
         $this->name = $pValue;
 
diff --git a/src/PhpPresentation/Writer/PowerPoint2007/PptTheme.php b/src/PhpPresentation/Writer/PowerPoint2007/PptTheme.php
index c2c9e8e9b..af7d08844 100644
--- a/src/PhpPresentation/Writer/PowerPoint2007/PptTheme.php
+++ b/src/PhpPresentation/Writer/PowerPoint2007/PptTheme.php
@@ -130,7 +130,7 @@ protected function writeTheme(Slide\SlideMaster $oMasterSlide): string
 
         // a:theme/a:themeElements/a:fontScheme/a:majorFont/a:latin
         $objWriter->startElement('a:latin');
-        $objWriter->writeAttribute('typeface', 'Calibri');
+        $objWriter->writeAttribute('typeface', 'Lato');
         $objWriter->endElement();
 
         // a:theme/a:themeElements/a:fontScheme/a:majorFont/a:ea
@@ -159,7 +159,7 @@ protected function writeTheme(Slide\SlideMaster $oMasterSlide): string
 
         // a:theme/a:themeElements/a:fontScheme/a:majorFont/a:latin
         $objWriter->startElement('a:latin');
-        $objWriter->writeAttribute('typeface', 'Calibri');
+        $objWriter->writeAttribute('typeface', 'Lato');
         $objWriter->endElement();
 
         // a:theme/a:themeElements/a:fontScheme/a:majorFont/a:ea
diff --git a/tests/PhpPresentation/Tests/Shape/Chart/SeriesTest.php b/tests/PhpPresentation/Tests/Shape/Chart/SeriesTest.php
index f3cc6b7b1..ab6e5d2bd 100644
--- a/tests/PhpPresentation/Tests/Shape/Chart/SeriesTest.php
+++ b/tests/PhpPresentation/Tests/Shape/Chart/SeriesTest.php
@@ -40,7 +40,7 @@ public function testConstruct(): void
 
         $this->assertInstanceOf(Fill::class, $object->getFill());
         $this->assertInstanceOf(Font::class, $object->getFont());
-        $this->assertEquals('Calibri', $object->getFont()->getName());
+        $this->assertEquals('Lato', $object->getFont()->getName());
         $this->assertEquals(9, $object->getFont()->getSize());
         $this->assertEquals('Series Title', $object->getTitle());
         $this->assertIsArray($object->getValues());
diff --git a/tests/PhpPresentation/Tests/Shape/Chart/TitleTest.php b/tests/PhpPresentation/Tests/Shape/Chart/TitleTest.php
index a2e076451..7328140f5 100644
--- a/tests/PhpPresentation/Tests/Shape/Chart/TitleTest.php
+++ b/tests/PhpPresentation/Tests/Shape/Chart/TitleTest.php
@@ -38,7 +38,7 @@ public function testConstruct(): void
 
         $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Style\\Alignment', $object->getAlignment());
         $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Style\\Font', $object->getFont());
-        $this->assertEquals('Calibri', $object->getFont()->getName());
+        $this->assertEquals('Lato', $object->getFont()->getName());
         $this->assertEquals(18, $object->getFont()->getSize());
     }
 
diff --git a/tests/PhpPresentation/Tests/Style/BulletTest.php b/tests/PhpPresentation/Tests/Style/BulletTest.php
index 8d8b96563..786270100 100644
--- a/tests/PhpPresentation/Tests/Style/BulletTest.php
+++ b/tests/PhpPresentation/Tests/Style/BulletTest.php
@@ -38,7 +38,7 @@ public function testConstruct(): void
     {
         $object = new Bullet();
         $this->assertEquals(Bullet::TYPE_NONE, $object->getBulletType());
-        $this->assertEquals('Calibri', $object->getBulletFont());
+        $this->assertEquals('Lato', $object->getBulletFont());
         $this->assertEquals('-', $object->getBulletChar());
         $this->assertEquals(Bullet::NUMERIC_DEFAULT, $object->getBulletNumericStyle());
         $this->assertEquals(1, $object->getBulletNumericStartAt());
@@ -81,9 +81,9 @@ public function testSetGetBulletFont(): void
     {
         $object = new Bullet();
         $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Style\\Bullet', $object->setBulletFont());
-        $this->assertEquals('Calibri', $object->getBulletFont());
+        $this->assertEquals('Lato', $object->getBulletFont());
         $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Style\\Bullet', $object->setBulletFont(''));
-        $this->assertEquals('Calibri', $object->getBulletFont());
+        $this->assertEquals('Lato', $object->getBulletFont());
         $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Style\\Bullet', $object->setBulletFont('Arial'));
         $this->assertEquals('Arial', $object->getBulletFont());
     }
diff --git a/tests/PhpPresentation/Tests/Style/FontTest.php b/tests/PhpPresentation/Tests/Style/FontTest.php
index 47deb3f0b..aec93e4c7 100644
--- a/tests/PhpPresentation/Tests/Style/FontTest.php
+++ b/tests/PhpPresentation/Tests/Style/FontTest.php
@@ -37,7 +37,7 @@ class FontTest extends TestCase
     public function testConstruct(): void
     {
         $object = new Font();
-        $this->assertEquals('Calibri', $object->getName());
+        $this->assertEquals('Lato', $object->getName());
         $this->assertEquals(10, $object->getSize());
         $this->assertFalse($object->isBold());
         $this->assertFalse($object->isItalic());
@@ -101,9 +101,9 @@ public function testName(): void
     {
         $object = new Font();
         $this->assertInstanceOf(Font::class, $object->setName());
-        $this->assertEquals('Calibri', $object->getName());
+        $this->assertEquals('Lato', $object->getName());
         $this->assertInstanceOf(Font::class, $object->setName(''));
-        $this->assertEquals('Calibri', $object->getName());
+        $this->assertEquals('Lato', $object->getName());
         $this->assertInstanceOf(Font::class, $object->setName('Arial'));
         $this->assertEquals('Arial', $object->getName());
     }
diff --git a/tests/PhpPresentation/Tests/Writer/ODPresentation/ObjectsChartTest.php b/tests/PhpPresentation/Tests/Writer/ODPresentation/ObjectsChartTest.php
index 59e668c8a..f081e9551 100644
--- a/tests/PhpPresentation/Tests/Writer/ODPresentation/ObjectsChartTest.php
+++ b/tests/PhpPresentation/Tests/Writer/ODPresentation/ObjectsChartTest.php
@@ -86,7 +86,7 @@ public function testAxisFont(): void
         $this->assertZipXmlAttributeEquals('Object 1/content.xml', $element, 'fo:color', '#AABBCC');
         $this->assertZipXmlAttributeEquals('Object 1/content.xml', $element, 'fo:font-style', 'italic');
         $this->assertZipXmlAttributeEquals('Object 1/content.xml', $element, 'fo:font-size', '10pt');
-        $this->assertZipXmlAttributeEquals('Object 1/content.xml', $element, 'fo:font-family', 'Calibri');
+        $this->assertZipXmlAttributeEquals('Object 1/content.xml', $element, 'fo:font-family', 'Lato');
 
         $element = '/office:document-content/office:automatic-styles/style:style[@style:name=\'styleAxisY\']/style:text-properties';
         $this->assertZipXmlElementExists('Object 1/content.xml', $element);
diff --git a/tests/PhpPresentation/Tests/Writer/PowerPoint2007/PptSlidesTest.php b/tests/PhpPresentation/Tests/Writer/PowerPoint2007/PptSlidesTest.php
index c1651a84c..9a030214c 100644
--- a/tests/PhpPresentation/Tests/Writer/PowerPoint2007/PptSlidesTest.php
+++ b/tests/PhpPresentation/Tests/Writer/PowerPoint2007/PptSlidesTest.php
@@ -778,7 +778,7 @@ public function testRichTextRunFontFormat(): void
 
         $this->assertZipXmlElementExists('ppt/slides/slide1.xml', $latinElement);
         $this->assertZipXmlAttributeExists('ppt/slides/slide1.xml', $latinElement, 'typeface');
-        $this->assertZipXmlAttributeEquals('ppt/slides/slide1.xml', $latinElement, 'typeface', 'Calibri');
+        $this->assertZipXmlAttributeEquals('ppt/slides/slide1.xml', $latinElement, 'typeface', 'Lato');
         $this->assertZipXmlElementNotExists('ppt/slides/slide1.xml', $eastAsianElement);
         $this->assertZipXmlElementNotExists('ppt/slides/slide1.xml', $complexScriptElement);
         $this->assertIsSchemaECMA376Valid();
@@ -789,7 +789,7 @@ public function testRichTextRunFontFormat(): void
         $this->assertZipXmlElementNotExists('ppt/slides/slide1.xml', $latinElement);
         $this->assertZipXmlElementExists('ppt/slides/slide1.xml', $eastAsianElement);
         $this->assertZipXmlAttributeExists('ppt/slides/slide1.xml', $eastAsianElement, 'typeface');
-        $this->assertZipXmlAttributeEquals('ppt/slides/slide1.xml', $eastAsianElement, 'typeface', 'Calibri');
+        $this->assertZipXmlAttributeEquals('ppt/slides/slide1.xml', $eastAsianElement, 'typeface', 'Lato');
         $this->assertZipXmlElementNotExists('ppt/slides/slide1.xml', $complexScriptElement);
         $this->assertIsSchemaECMA376Valid();
 
@@ -800,7 +800,7 @@ public function testRichTextRunFontFormat(): void
         $this->assertZipXmlElementNotExists('ppt/slides/slide1.xml', $eastAsianElement);
         $this->assertZipXmlElementExists('ppt/slides/slide1.xml', $complexScriptElement);
         $this->assertZipXmlAttributeExists('ppt/slides/slide1.xml', $complexScriptElement, 'typeface');
-        $this->assertZipXmlAttributeEquals('ppt/slides/slide1.xml', $complexScriptElement, 'typeface', 'Calibri');
+        $this->assertZipXmlAttributeEquals('ppt/slides/slide1.xml', $complexScriptElement, 'typeface', 'Lato');
         $this->assertIsSchemaECMA376Valid();
     }