diff --git a/apps/broker-api/package.json b/apps/broker-api/package.json
index e4dc16e88..57243a001 100644
--- a/apps/broker-api/package.json
+++ b/apps/broker-api/package.json
@@ -46,7 +46,7 @@
     "uuid": "^9.0.1",
     "ws": "^8.21.0",
     "yamljs": "^0.3.0",
-    "zod": "^3.22.0"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@types/better-sqlite3": "^7.6.8",
diff --git a/apps/indexer-api/package.json b/apps/indexer-api/package.json
index 1c217b5b0..c1c36b044 100644
--- a/apps/indexer-api/package.json
+++ b/apps/indexer-api/package.json
@@ -23,7 +23,7 @@
     "ethers": "6.17.0",
     "express": "^4.18.0",
     "next": "14.2.35",
-    "zod": "^3.22.0"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@types/cors": "^2.8.0",
diff --git a/apps/integrity-tier-service/package.json b/apps/integrity-tier-service/package.json
index b8728317c..20cb63eb0 100644
--- a/apps/integrity-tier-service/package.json
+++ b/apps/integrity-tier-service/package.json
@@ -21,7 +21,7 @@
     "express": "^4.18.3",
     "next": "14.2.35",
     "uuid": "^9.0.1",
-    "zod": "^3.23.0"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@types/express": "^4.17.21",
diff --git a/apps/mcp-server/package.json b/apps/mcp-server/package.json
index 985abe8e8..53414ea6a 100644
--- a/apps/mcp-server/package.json
+++ b/apps/mcp-server/package.json
@@ -19,7 +19,7 @@
     "helmet": "^7.1.0",
     "next": "14.2.35",
     "node-fetch": "^3.3.2",
-    "zod": "^3.22.4"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@types/cors": "^2.8.17",
diff --git a/package-lock.json b/package-lock.json
index da5e79582..ead106b2b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -188,7 +188,7 @@
         "uuid": "^9.0.1",
         "ws": "^8.21.0",
         "yamljs": "^0.3.0",
-        "zod": "^3.22.0"
+        "zod": "4.4.3"
       },
       "devDependencies": {
         "@types/better-sqlite3": "^7.6.8",
@@ -611,7 +611,7 @@
         "ethers": "6.17.0",
         "express": "^4.18.0",
         "next": "14.2.35",
-        "zod": "^3.22.0"
+        "zod": "4.4.3"
       },
       "devDependencies": {
         "@types/cors": "^2.8.0",
@@ -660,7 +660,7 @@
         "express": "^4.18.3",
         "next": "14.2.35",
         "uuid": "^9.0.1",
-        "zod": "^3.23.0"
+        "zod": "4.4.3"
       },
       "devDependencies": {
         "@types/express": "^4.17.21",
@@ -684,7 +684,7 @@
         "helmet": "^7.1.0",
         "next": "14.2.35",
         "node-fetch": "^3.3.2",
-        "zod": "^3.22.4"
+        "zod": "4.4.3"
       },
       "devDependencies": {
         "@types/cors": "^2.8.17",
@@ -30061,9 +30061,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.4.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.4.3.tgz",
+      "integrity": "sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
@@ -30511,7 +30511,7 @@
         "eslint-config-next": "14.2.35",
         "ethers": "6.17.0",
         "next": "14.2.35",
-        "zod": "^3.23.8"
+        "zod": "4.4.3"
       }
     },
     "packages/delibproof": {
@@ -30610,7 +30610,7 @@
         "js-yaml": "^5.2.0",
         "next": "14.2.35",
         "tweetnacl": "^1.0.3",
-        "zod": "^3.22.0"
+        "zod": "4.4.3"
       },
       "devDependencies": {
         "@types/js-yaml": "^4.0.9",
@@ -31234,7 +31234,7 @@
         "eslint-config-next": "14.2.35",
         "ethers": "6.17.0",
         "next": "14.2.35",
-        "zod": "^3.23.8"
+        "zod": "4.4.3"
       },
       "devDependencies": {
         "@types/node": "^22.8.1",
@@ -31313,7 +31313,7 @@
         "next": "14.2.35",
         "pg": "^8.22.0",
         "yaml": "^2.9.0",
-        "zod": "^3.23.8"
+        "zod": "4.4.3"
       },
       "devDependencies": {
         "@types/express": "^4.17.21",
diff --git a/packages/config/package.json b/packages/config/package.json
index 007f290cc..e4e1454b3 100644
--- a/packages/config/package.json
+++ b/packages/config/package.json
@@ -15,6 +15,6 @@
     "eslint-config-next": "14.2.35",
     "ethers": "6.17.0",
     "next": "14.2.35",
-    "zod": "^3.23.8"
+    "zod": "^4.4.3"
   }
 }
diff --git a/packages/integrity-core/package.json b/packages/integrity-core/package.json
index c1ed7f3e8..7e750dc85 100644
--- a/packages/integrity-core/package.json
+++ b/packages/integrity-core/package.json
@@ -18,7 +18,7 @@
     "js-yaml": "^5.2.0",
     "next": "14.2.35",
     "tweetnacl": "^1.0.3",
-    "zod": "^3.22.0"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@types/js-yaml": "^4.0.9",
diff --git a/sentinels/aurea/package.json b/sentinels/aurea/package.json
index 164cffb73..45814c8bd 100644
--- a/sentinels/aurea/package.json
+++ b/sentinels/aurea/package.json
@@ -15,7 +15,7 @@
     "eslint-config-next": "14.2.35",
     "ethers": "6.17.0",
     "next": "14.2.35",
-    "zod": "^3.23.8"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@types/node": "^22.8.1",
diff --git a/services/civic-ledger/package.json b/services/civic-ledger/package.json
index 14852cc84..6409246e5 100644
--- a/services/civic-ledger/package.json
+++ b/services/civic-ledger/package.json
@@ -22,7 +22,7 @@
     "next": "14.2.35",
     "pg": "^8.22.0",
     "yaml": "^2.9.0",
-    "zod": "^3.23.8"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@types/express": "^4.17.21",