diff --git a/install.sh b/install.sh
index 0066c2f..447f8b0 100644
--- a/install.sh
+++ b/install.sh
@@ -308,7 +308,7 @@ except ValueError: raise SystemExit(1)
 if (parsed.scheme != 'https' or parsed.netloc.lower() != 'git.keeper.work' or
     parsed.username is not None or parsed.password is not None or port is not None or
     parsed.query or parsed.fragment or '%' in (parsed.path or '') or
-    re.fullmatch(r'/api/packages/[^/]+/generic/[^/]+/[^/]+/[^/]+', parsed.path or '') is None):
+    re.fullmatch(r'/api/packages/[^/]+/generic/[^/]+/[A-Za-z0-9][A-Za-z0-9.-]*-[0-9a-fA-F]{12}(?:-[a-z0-9][a-z0-9-]{5,80})?/[^/]+', parsed.path or '') is None):
     raise SystemExit(1)
 print(e['version'], e['asset_url'], e['sha256'].lower(), sep='\t')
 PY