diff --git a/.changeset/dependencies-GH-2422.md b/.changeset/dependencies-GH-2422.md
new file mode 100644
index 000000000..4d23363cf
--- /dev/null
+++ b/.changeset/dependencies-GH-2422.md
@@ -0,0 +1,6 @@
+---
+"@sanity/parse-package-json": patch
+"@sanity/pkg-utils": patch
+---
+
+fix(deps): Update dependency zod to ^4.2.1
diff --git a/packages/@sanity/parse-package-json/package.json b/packages/@sanity/parse-package-json/package.json
index fd8aea8e4..5bbe80cac 100644
--- a/packages/@sanity/parse-package-json/package.json
+++ b/packages/@sanity/parse-package-json/package.json
@@ -32,7 +32,7 @@
     "typecheck": "tsc --build"
   },
   "dependencies": {
-    "zod": "^4.2.0"
+    "zod": "^4.2.1"
   },
   "devDependencies": {
     "@sanity/tsconfig": "workspace:^",
diff --git a/packages/@sanity/pkg-utils/package.json b/packages/@sanity/pkg-utils/package.json
index 5aa12d208..1c9471384 100644
--- a/packages/@sanity/pkg-utils/package.json
+++ b/packages/@sanity/pkg-utils/package.json
@@ -101,7 +101,7 @@
     "treeify": "^1.1.0",
     "tsx": "^4.21.0",
     "uuid": "^13.0.0",
-    "zod": "^4.2.0",
+    "zod": "^4.2.1",
     "zod-validation-error": "^5.0.0"
   },
   "devDependencies": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 62cc8d8f5..f84bb4f24 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -102,8 +102,8 @@ importers:
   packages/@sanity/parse-package-json:
     dependencies:
       zod:
-        specifier: ^4.2.0
-        version: 4.2.0
+        specifier: ^4.2.1
+        version: 4.2.1
     devDependencies:
       '@sanity/tsconfig':
         specifier: workspace:^
@@ -265,11 +265,11 @@ importers:
         specifier: ^13.0.0
         version: 13.0.0
       zod:
-        specifier: ^4.2.0
-        version: 4.2.0
+        specifier: ^4.2.1
+        version: 4.2.1
       zod-validation-error:
         specifier: ^5.0.0
-        version: 5.0.0(zod@4.2.0)
+        version: 5.0.0(zod@4.2.1)
     devDependencies:
       '@sanity/tsconfig':
         specifier: workspace:^
@@ -7775,8 +7775,8 @@ packages:
   zod@3.25.76:
     resolution: {integrity: sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==}
 
-  zod@4.2.0:
-    resolution: {integrity: sha512-Bd5fw9wlIhtqCCxotZgdTOMwGm1a0u75wARVEY9HMs1X17trvA/lMi4+MGK5EUfYkXVTbX8UDiDKW4OgzHVUZw==}
+  zod@4.2.1:
+    resolution: {integrity: sha512-0wZ1IRqGGhMP76gLqz8EyfBXKk0J2qo2+H3fi4mcUP/KtTocoX08nmIAHl1Z2kJIZbZee8KOpBCSNPRgauucjw==}
 
   zustand@5.0.9:
     resolution: {integrity: sha512-ALBtUj0AfjJt3uNRQoL1tL2tMvj6Gp/6e39dnfT6uzpelGru8v1tPOGBzayOWbPJvujM8JojDk3E1LxeFisBNg==}
@@ -15646,13 +15646,13 @@ snapshots:
       typescript: 5.9.3
       zod: 3.25.76
 
-  zod-validation-error@5.0.0(zod@4.2.0):
+  zod-validation-error@5.0.0(zod@4.2.1):
     dependencies:
-      zod: 4.2.0
+      zod: 4.2.1
 
   zod@3.25.76: {}
 
-  zod@4.2.0: {}
+  zod@4.2.1: {}
 
   zustand@5.0.9(@types/react@19.2.7)(react@19.2.3)(use-sync-external-store@1.6.0(react@19.2.3)):
     optionalDependencies: