diff --git a/javascript/pfi-aud-usd-tbdex/package-lock.json b/javascript/pfi-aud-usd-tbdex/package-lock.json
index e53d4c9e..83b5ea10 100644
--- a/javascript/pfi-aud-usd-tbdex/package-lock.json
+++ b/javascript/pfi-aud-usd-tbdex/package-lock.json
@@ -24,7 +24,7 @@
         "papaparse": "^5.4.1"
       },
       "devDependencies": {
-        "@sphereon/pex-models": "2.0.3",
+        "@sphereon/pex-models": "2.3.1",
         "@sphereon/ssi-types": "0.15.1",
         "@types/chai": "4.3.4",
         "@types/chai-as-promised": "7.1.8",
@@ -724,9 +724,10 @@
       }
     },
     "node_modules/@sphereon/pex-models": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/@sphereon/pex-models/-/pex-models-2.0.3.tgz",
-      "integrity": "sha512-NsPeYmJLhxRG5fJxpcHnRR3xvi7i8SK8s21kYR9oBWO8cBU9qBCpw3gdUNiyI01/h6fbYqkIZ7eBNsHBIzqk5Q=="
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/@sphereon/pex-models/-/pex-models-2.3.1.tgz",
+      "integrity": "sha512-SByU4cJ0XYA6VZQ/L6lsSiRcFtBPHbFioCeQ4GP7/W/jQ+PSBD7uK2oTnKQ9/0iEiMK/6JYqhKgLs4a9UX3UTQ==",
+      "license": "Apache-2.0"
     },
     "node_modules/@sphereon/pex/node_modules/@sphereon/ssi-types": {
       "version": "0.13.0",
diff --git a/javascript/pfi-aud-usd-tbdex/package.json b/javascript/pfi-aud-usd-tbdex/package.json
index 8ec2ff7f..c6a020ab 100644
--- a/javascript/pfi-aud-usd-tbdex/package.json
+++ b/javascript/pfi-aud-usd-tbdex/package.json
@@ -19,7 +19,7 @@
     "papaparse": "^5.4.1"
   },
   "devDependencies": {
-    "@sphereon/pex-models": "2.0.3",
+    "@sphereon/pex-models": "2.3.1",
     "@sphereon/ssi-types": "0.15.1",
     "@types/chai": "4.3.4",
     "@types/chai-as-promised": "7.1.8",
diff --git a/javascript/tbdex-pfi-exemplar/package-lock.json b/javascript/tbdex-pfi-exemplar/package-lock.json
index 0018a67c..2472367b 100644
--- a/javascript/tbdex-pfi-exemplar/package-lock.json
+++ b/javascript/tbdex-pfi-exemplar/package-lock.json
@@ -24,7 +24,7 @@
         "pg": "8.12.0"
       },
       "devDependencies": {
-        "@sphereon/pex-models": "2.0.3",
+        "@sphereon/pex-models": "2.3.1",
         "@sphereon/ssi-types": "0.15.1",
         "@types/chai": "4.3.4",
         "@types/chai-as-promised": "7.1.8",
@@ -506,9 +506,10 @@
       }
     },
     "node_modules/@sphereon/pex-models": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/@sphereon/pex-models/-/pex-models-2.0.3.tgz",
-      "integrity": "sha512-NsPeYmJLhxRG5fJxpcHnRR3xvi7i8SK8s21kYR9oBWO8cBU9qBCpw3gdUNiyI01/h6fbYqkIZ7eBNsHBIzqk5Q=="
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/@sphereon/pex-models/-/pex-models-2.3.1.tgz",
+      "integrity": "sha512-SByU4cJ0XYA6VZQ/L6lsSiRcFtBPHbFioCeQ4GP7/W/jQ+PSBD7uK2oTnKQ9/0iEiMK/6JYqhKgLs4a9UX3UTQ==",
+      "license": "Apache-2.0"
     },
     "node_modules/@sphereon/pex/node_modules/@sphereon/ssi-types": {
       "version": "0.13.0",
diff --git a/javascript/tbdex-pfi-exemplar/package.json b/javascript/tbdex-pfi-exemplar/package.json
index 0722cd5d..e8c2591f 100644
--- a/javascript/tbdex-pfi-exemplar/package.json
+++ b/javascript/tbdex-pfi-exemplar/package.json
@@ -19,7 +19,7 @@
     "pg": "8.12.0"
   },
   "devDependencies": {
-    "@sphereon/pex-models": "2.0.3",
+    "@sphereon/pex-models": "2.3.1",
     "@sphereon/ssi-types": "0.15.1",
     "@types/chai": "4.3.4",
     "@types/chai-as-promised": "7.1.8",