diff --git a/test/package.json b/test/package.json
index 51a8456..bc7a3a8 100644
--- a/test/package.json
+++ b/test/package.json
@@ -51,7 +51,7 @@
     "@bedrock/zcap-storage": "^8.0.0",
     "@digitalbazaar/data-integrity": "^2.0.0",
     "@digitalbazaar/did-method-key": "^3.0.0",
-    "@digitalbazaar/ecdsa-sd-2023-cryptosuite": "^3.0.0",
+    "@digitalbazaar/ecdsa-sd-2023-cryptosuite": "^3.2.0",
     "@digitalbazaar/ed25519-signature-2020": "^5.0.0",
     "@digitalbazaar/ed25519-verification-key-2020": "^4.0.0",
     "@digitalbazaar/edv-client": "^16.0.0",
@@ -60,7 +60,7 @@
     "@digitalbazaar/vc": "^6.1.0",
     "@digitalbazaar/vc-status-list-context": "^3.0.1",
     "@digitalbazaar/webkms-client": "^13.0.0",
-    "c8": "^7.11.3",
+    "c8": "^9.1.0",
     "cross-env": "^7.0.3",
     "express": "^4.18.1",
     "jose": "^4.8.3",