diff --git a/javascript/tokenscript-viewer/package-lock.json b/javascript/tokenscript-viewer/package-lock.json
index bac4b77..8bc3c09 100644
--- a/javascript/tokenscript-viewer/package-lock.json
+++ b/javascript/tokenscript-viewer/package-lock.json
@@ -43,7 +43,7 @@
     },
     "../engine-js": {
       "name": "@tokenscript/engine-js",
-      "version": "1.5.2",
+      "version": "1.5.3",
       "license": "ISC",
       "dependencies": {
         "@ethereum-attestation-service/eas-sdk": "^2.5.0",
diff --git a/javascript/tokenscript-viewer/package.json b/javascript/tokenscript-viewer/package.json
index f510f8f..5e8aae2 100644
--- a/javascript/tokenscript-viewer/package.json
+++ b/javascript/tokenscript-viewer/package.json
@@ -8,7 +8,7 @@
     "start": "stencil build --dev --watch --serve",
     "generate": "stencil generate",
     "test": "echo \"Error: no test specified\" && exit 1",
-    "postinstall": "npx -y patch-package"
+    "postinstall": "npx -y patch-package && cd ../engine-js && npx -y patch-package"
   },
   "author": "",
   "license": "ISC",
@@ -48,7 +48,7 @@
       "@xmldom/xmldom": "^0.9.0-beta.6"
     },
     "xmldsigjs": {
-      "pkijs": "3.0.11"
+      "pkijs": "3.1.0"
     },
     "elliptic": "^6.5.4"
   }
diff --git a/javascript/tokenscript-viewer/patches/pkijs+3.0.11.patch b/javascript/tokenscript-viewer/patches/pkijs+3.0.11.patch
deleted file mode 100644
index cac8d50..0000000
--- a/javascript/tokenscript-viewer/patches/pkijs+3.0.11.patch
+++ /dev/null
@@ -1,88 +0,0 @@
-diff --git a/node_modules/pkijs/build/index.es.js b/node_modules/pkijs/build/index.es.js
-index 5f55776..5c1f00e 100644
---- a/node_modules/pkijs/build/index.es.js
-+++ b/node_modules/pkijs/build/index.es.js
-@@ -3567,6 +3567,7 @@ ECNamedCurves.namedCurves = {};
-     _a.register("P-256", "1.2.840.10045.3.1.7", 32);
-     _a.register("P-384", "1.3.132.0.34", 48);
-     _a.register("P-521", "1.3.132.0.35", 66);
-+    _a.register("K-256", "1.3.132.0.10", 32);
-     _a.register("brainpoolP256r1", "1.3.36.3.3.2.8.1.1.7", 32);
-     _a.register("brainpoolP384r1", "1.3.36.3.3.2.8.1.1.11", 48);
-     _a.register("brainpoolP512r1", "1.3.36.3.3.2.8.1.1.13", 64);
-@@ -3779,6 +3780,7 @@ class PublicKeyInfo extends PkiObject {
-                                 });
-                             }
-                             catch (ex) {
-+								console.warn(ex);
-                             }
-                         }
-                     }
-@@ -5783,6 +5785,13 @@ class CryptoEngine extends AbstractCryptoEngine {
-                 return {
-                     name: "P-521"
-                 };
-+			case "1.3.132.0.10":
-+				return {
-+					name: "K-256",
-+					hash: {
-+						name: "SHA-256"
-+					}
-+				};
-         }
-         if (safety) {
-             throw new Error(`Unsupported algorithm identifier ${target ? `for ${target} ` : EMPTY_STRING}: ${oid}`);
-@@ -5952,6 +5961,9 @@ class CryptoEngine extends AbstractCryptoEngine {
-             case "P-521":
-                 result = "1.3.132.0.35";
-                 break;
-+			case "K-256":
-+				result = "1.3.132.0.10";
-+				break;
-         }
-         if (!result && safety) {
-             throw new Error(`Unsupported algorithm ${target ? `for ${target} ` : EMPTY_STRING}: ${algorithm.name}`);
-diff --git a/node_modules/pkijs/build/index.js b/node_modules/pkijs/build/index.js
-index 669c2b7..f8248cb 100644
---- a/node_modules/pkijs/build/index.js
-+++ b/node_modules/pkijs/build/index.js
-@@ -3593,6 +3593,7 @@ ECNamedCurves.namedCurves = {};
-     _a.register("P-256", "1.2.840.10045.3.1.7", 32);
-     _a.register("P-384", "1.3.132.0.34", 48);
-     _a.register("P-521", "1.3.132.0.35", 66);
-+    _a.register("K-256", "1.3.132.0.10", 32);
-     _a.register("brainpoolP256r1", "1.3.36.3.3.2.8.1.1.7", 32);
-     _a.register("brainpoolP384r1", "1.3.36.3.3.2.8.1.1.11", 48);
-     _a.register("brainpoolP512r1", "1.3.36.3.3.2.8.1.1.13", 64);
-@@ -3805,6 +3806,7 @@ class PublicKeyInfo extends PkiObject {
-                                 });
-                             }
-                             catch (ex) {
-+								console.warn(ex);
-                             }
-                         }
-                     }
-@@ -5809,6 +5811,13 @@ class CryptoEngine extends AbstractCryptoEngine {
-                 return {
-                     name: "P-521"
-                 };
-+			case "1.3.132.0.10":
-+				return {
-+					name: "K-256",
-+					hash: {
-+						name: "SHA-256"
-+					}
-+				};
-         }
-         if (safety) {
-             throw new Error(`Unsupported algorithm identifier ${target ? `for ${target} ` : EMPTY_STRING}: ${oid}`);
-@@ -5978,6 +5987,9 @@ class CryptoEngine extends AbstractCryptoEngine {
-             case "P-521":
-                 result = "1.3.132.0.35";
-                 break;
-+			case "K-256":
-+				result = "1.3.132.0.10";
-+				break;
-         }
-         if (!result && safety) {
-             throw new Error(`Unsupported algorithm ${target ? `for ${target} ` : EMPTY_STRING}: ${algorithm.name}`);