diff --git a/README.md b/README.md
index f2ab074..224540d 100644
--- a/README.md
+++ b/README.md
@@ -671,6 +671,7 @@ embedding:
 
 | Language | Aliases | File Extensions |
 |----------|---------|-----------------|
+| apex | | `.cls`, `.trigger` |
 | c | | `.c` |
 | cpp | c++ | `.cpp`, `.cc`, `.cxx`, `.h`, `.hpp` |
 | csharp | csharp, cs | `.cs` |
diff --git a/src/cocoindex_code/settings.py b/src/cocoindex_code/settings.py
index 73b026b..874c7fe 100644
--- a/src/cocoindex_code/settings.py
+++ b/src/cocoindex_code/settings.py
@@ -28,6 +28,8 @@
     "**/*.rs",  # Rust
     "**/*.go",  # Go
     "**/*.java",  # Java
+    "**/*.cls",  # Salesforce Apex classes
+    "**/*.trigger",  # Salesforce Apex triggers
     "**/*.c",  # C
     "**/*.h",  # C/C++ headers
     "**/*.cpp",  # C++
diff --git a/tests/test_settings.py b/tests/test_settings.py
index 6c06af1..91d88cb 100644
--- a/tests/test_settings.py
+++ b/tests/test_settings.py
@@ -64,6 +64,11 @@ def test_default_project_settings() -> None:
     assert s.language_overrides == []
 
 
+def test_default_include_patterns_include_salesforce_apex() -> None:
+    assert "**/*.cls" in DEFAULT_INCLUDED_PATTERNS
+    assert "**/*.trigger" in DEFAULT_INCLUDED_PATTERNS
+
+
 @pytest.mark.usefixtures("_patch_user_dir")
 def test_save_and_load_user_settings(tmp_path: Path) -> None:
     settings = UserSettings(