diff --git a/.github/workflows/third-party-tests.yml b/.github/workflows/third-party-tests.yml
index e7aec5f..572e4fc 100644
--- a/.github/workflows/third-party-tests.yml
+++ b/.github/workflows/third-party-tests.yml
@@ -24,6 +24,8 @@ jobs:
           - 'composer'
           - 'wordpress'
           - 'chubbyphp_framework'
+          - 'silverstripe_framework_core'
+          - 'silverstripe_framework_cms'
 
     steps:
       - name: checkout
diff --git a/tests/third_party_tests.rs b/tests/third_party_tests.rs
index bd5bc62..27d4fc9 100644
--- a/tests/third_party_tests.rs
+++ b/tests/third_party_tests.rs
@@ -146,6 +146,28 @@ fn third_party_11_chubbyphp_framework() {
     );
 }
 
+#[test]
+fn third_party_12_silverstripe_framework_core() {
+    test_repository(
+        "silverstripe-framework",
+        "https://github.com/silverstripe/silverstripe-framework",
+        "4",
+        &["src", "tests"],
+        &[],
+    );
+}
+
+#[test]
+fn third_party_12_silverstripe_framework_cms() {
+    test_repository(
+        "silverstripe-cms",
+        "https://github.com/silverstripe/silverstripe-cms",
+        "4",
+        &["code", "tests"],
+        &[],
+    );
+}
+
 fn test_repository(
     name: &str,
     repository: &str,