diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 2569465d4..814e54b6b 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -7,10 +7,11 @@ permissions:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        java: [21, 24, 25, '26-ea'] 
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        java: [21, 24, 25, '26-ea']
     name: Build with Java ${{ matrix.java }}
     steps:
       - uses: actions/checkout@v5
@@ -22,6 +23,7 @@ jobs:
           java-version: ${{ matrix.java }}
 
       - name: Check Maven version and directory contents
+        shell: bash
         run: |
           mvn -v
           echo "** ls **"
diff --git a/openpdf-core/src/test/java/org/openpdf/text/pdf/fonts/FontTest.java b/openpdf-core/src/test/java/org/openpdf/text/pdf/fonts/FontTest.java
index d5bf1f8f8..3f03839b1 100644
--- a/openpdf-core/src/test/java/org/openpdf/text/pdf/fonts/FontTest.java
+++ b/openpdf-core/src/test/java/org/openpdf/text/pdf/fonts/FontTest.java
@@ -1,5 +1,5 @@
 package org.openpdf.text.pdf.fonts;
-
+import org.junit.jupiter.api.Assumptions;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -84,6 +84,7 @@ void testStyleSettingByPredicate(int style) {
     @ParameterizedTest(name = "Style {0}")
     @MethodSource("getStyles")
     void testFontStyleOfStyledFont(int style) {
+        Assumptions.assumeFalse(System.getProperty("os.name").toLowerCase().contains("mac"), "Font not available on macOS");
         final Font font = FontFactory.getFont(FONT_NAME_WITH_STYLES, DEFAULT_FONT_SIZE, style);
 
         // For the font Courier, there is no Courier-Underline or Courier-Strikethrough font available.