diff --git a/cicd_tool/main.py b/cicd_tool/main.py
index 9e03d81..9ebb4ef 100644
--- a/cicd_tool/main.py
+++ b/cicd_tool/main.py
@@ -115,16 +115,21 @@ def _ensure_bucket(client: Minio, bucket_name: str) -> None:
 
 def _collect_artifacts() -> List[Path]:
     artifacts: List[Path] = []
-    for directory in (
-        ARTIFACT_ROOT / "msi",
-        ARTIFACT_ROOT / "nsis",
-        ARTIFACT_ROOT / "appimage",
-        ARTIFACT_ROOT / "deb",
-        ARTIFACT_ROOT / "rpm",
-        ARTIFACT_ROOT / "app",
-    ):
+    bundle_dirs = {
+        ARTIFACT_ROOT / "msi": (".msi", ".sig"),
+        ARTIFACT_ROOT / "nsis": (".exe", ".sig"),
+        ARTIFACT_ROOT / "appimage": (".appimage", ".sig"),
+        ARTIFACT_ROOT / "deb": (".deb", ".sig"),
+        ARTIFACT_ROOT / "rpm": (".rpm", ".sig"),
+        ARTIFACT_ROOT / "app": (".dmg", ".zip", ".sig"),
+    }
+    for directory, suffixes in bundle_dirs.items():
         if directory.exists():
-            artifacts.extend(p for p in directory.rglob("*") if p.is_file())
+            artifacts.extend(
+                p
+                for p in directory.iterdir()
+                if p.is_file() and p.suffix.lower() in suffixes
+            )
     return artifacts