diff --git a/packages/car/package.json b/packages/car/package.json
index 3855696..2fa0482 100644
--- a/packages/car/package.json
+++ b/packages/car/package.json
@@ -162,7 +162,7 @@
     "cborg": "^1.10.2",
     "interface-blockstore": "^5.0.0",
     "it-map": "^3.0.3",
-    "multiformats": "^11.0.1",
+    "multiformats": "^12.0.1",
     "p-defer": "^4.0.0",
     "p-queue": "^7.3.4",
     "progress-events": "^1.0.0"
diff --git a/packages/interop/package.json b/packages/interop/package.json
index 49fd594..c8a1318 100644
--- a/packages/interop/package.json
+++ b/packages/interop/package.json
@@ -67,7 +67,7 @@
     "kubo-rpc-client": "^3.0.0",
     "libp2p": "^0.45.3",
     "merge-options": "^3.0.4",
-    "multiformats": "^11.0.1",
+    "multiformats": "^12.0.1",
     "p-defer": "^4.0.0",
     "wherearewe": "^2.0.1"
   },