diff --git a/service/package-lock.json b/service/package-lock.json
index c814240..aa15b73 100644
--- a/service/package-lock.json
+++ b/service/package-lock.json
@@ -8,7 +8,7 @@
       "name": "c2pa-spike-signer",
       "version": "0.1.0",
       "dependencies": {
-        "@contentauth/c2pa-node": "0.9.5",
+        "@contentauth/c2pa-node": "0.9.11",
         "express": "^5.2.1"
       },
       "engines": {
@@ -16,14 +16,14 @@
       }
     },
     "node_modules/@contentauth/c2pa-node": {
-      "version": "0.9.5",
-      "resolved": "https://registry.npmjs.org/@contentauth/c2pa-node/-/c2pa-node-0.9.5.tgz",
-      "integrity": "sha512-7n2o3UX0rmNL+8LmVhEd3aun2LXLulcI9y02gKhKE1rgqliZgwocmwg8V+vZat3+JLHPvxABtp8Icy1sUEbd1w==",
+      "version": "0.9.11",
+      "resolved": "https://registry.npmjs.org/@contentauth/c2pa-node/-/c2pa-node-0.9.11.tgz",
+      "integrity": "sha512-YSXulqePrayJ92dQ+55+uHoCr+axQey1vbgZeQIPDn4GdsEeCCAKKZyJ11hWCjIRLoRYaAZ6/USZhInx2p/wwg==",
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
-        "@contentauth/c2pa-types": "0.7.4",
-        "@contentauth/c2pa-utilities": "0.2.2",
+        "@contentauth/c2pa-types": "0.7.7",
+        "@contentauth/c2pa-utilities": "0.3.3",
         "cargo-cp-artifact": "^0.1.9",
         "cli-progress": "^3.12.0",
         "debug": "^4.4.3",
@@ -39,17 +39,17 @@
       }
     },
     "node_modules/@contentauth/c2pa-types": {
-      "version": "0.7.4",
-      "resolved": "https://registry.npmjs.org/@contentauth/c2pa-types/-/c2pa-types-0.7.4.tgz",
-      "integrity": "sha512-lPxm/5yvUqS2LItFMvgfCDWm8yCw9vsW32vrkCPgj4QkzGxQ9WuUkK32eWzsxBL9sCDbCQDNNtFroH6qTaU90w=="
+      "version": "0.7.7",
+      "resolved": "https://registry.npmjs.org/@contentauth/c2pa-types/-/c2pa-types-0.7.7.tgz",
+      "integrity": "sha512-afz7WF6RWXoKYStQIjjmTeeYJu8fhadD9q+0FnSHREUk2bRm2PT+1L4Wcldss5UjQke63hrWgHBUshBn6tvaIg=="
     },
     "node_modules/@contentauth/c2pa-utilities": {
-      "version": "0.2.2",
-      "resolved": "https://registry.npmjs.org/@contentauth/c2pa-utilities/-/c2pa-utilities-0.2.2.tgz",
-      "integrity": "sha512-mUHDB2QlVFRcB6jUk+puZRvfJLPjfA2aiJVqk1QrO8GakoWtNMdjbFA3cRhhuMa4W0rIFrWfi4s/lCTGtMSG4g==",
+      "version": "0.3.3",
+      "resolved": "https://registry.npmjs.org/@contentauth/c2pa-utilities/-/c2pa-utilities-0.3.3.tgz",
+      "integrity": "sha512-9vC7/aXZVn+Tr/0wuzrh5/I3vGdjDLqFjQ8MakYvXl6DpAJSNHDJca7fV2cpag3upF53Yo7XpfgZfJaFtQjwAw==",
       "license": "MIT",
       "dependencies": {
-        "@contentauth/c2pa-types": "0.7.4",
+        "@contentauth/c2pa-types": "0.7.7",
         "ts-deepmerge": "^8.0.0"
       }
     },
diff --git a/service/package.json b/service/package.json
index d8bb70d..ccd6d42 100644
--- a/service/package.json
+++ b/service/package.json
@@ -8,7 +8,7 @@
   "engines": { "node": ">=22.0.0" },
   "scripts": { "start": "node server.js" },
   "dependencies": {
-    "@contentauth/c2pa-node": "0.9.5",
+    "@contentauth/c2pa-node": "0.9.11",
     "express": "^5.2.1"
   }
 }
\ No newline at end of file