diff --git a/package.json b/package.json
index c25e3b8..adb47d7 100644
--- a/package.json
+++ b/package.json
@@ -59,6 +59,7 @@
     "promise-retry": "^2.0.1",
     "read-package-json": "^6.0.0",
     "read-package-json-fast": "^3.0.0",
+    "sigstore": "^1.0.0",
     "ssri": "^10.0.0",
     "tar": "^6.1.11"
   },