diff --git a/src/macaron/repo_finder/repo_finder_deps_dev.py b/src/macaron/repo_finder/repo_finder_deps_dev.py
index 3375151d0..9d723c2d9 100644
--- a/src/macaron/repo_finder/repo_finder_deps_dev.py
+++ b/src/macaron/repo_finder/repo_finder_deps_dev.py
@@ -55,6 +55,12 @@ def find_repo(self, purl: PackageURL) -> tuple[str, RepoFinderInfo]:
         tuple[str, RepoFinderOutcome] :
             A tuple of the found URL (or an empty string), and the outcome of the Repo Finder.
         """
+        if not purl.version:
+            latest_purl, outcome = self.get_latest_version(purl)
+            if not latest_purl:
+                return "", outcome
+            purl = latest_purl
+
         try:
             json_data = DepsDevService.get_package_info(str(purl))
         except APIAccessError:
@@ -183,7 +189,7 @@ def get_attestation(purl: PackageURL) -> tuple[dict | None, bool]:
 
         # Example of a PURL endpoint for deps.dev with '/' encoded as '%2F':
         # https://api.deps.dev/v3alpha/purl/pkg:npm%2F@sigstore%2Fmock@0.7.5
-        purl_endpoint = DepsDevService().get_purl_endpoint(purl)
+        purl_endpoint = DepsDevService.get_purl_endpoint(purl)
         target_url = urllib.parse.urlunsplit(purl_endpoint)
 
         result = send_get_http(target_url, headers={})
diff --git a/src/macaron/repo_finder/repo_finder_pypi.py b/src/macaron/repo_finder/repo_finder_pypi.py
index 7525c3779..873bd2a20 100644
--- a/src/macaron/repo_finder/repo_finder_pypi.py
+++ b/src/macaron/repo_finder/repo_finder_pypi.py
@@ -61,7 +61,7 @@ def find_repo(
             if not isinstance(existing_asset, PyPIPackageJsonAsset):
                 continue
 
-            if existing_asset.component_name == purl.name and existing_asset.component_version == purl.version:
+            if existing_asset.component_name == purl.name:
                 pypi_asset = existing_asset
                 from_metadata = True
                 break